Hubbry Logo
19311931Main
Open search
1931
Community hub
1931
logo
8 pages, 0 posts
0 subscribers
Be the first to start a discussion here.
Be the first to start a discussion here.
Contribute something
1931
1931
from Wikipedia

From top to bottom, left to right: The catastrophic 1931 China floods submerge vast regions along the Yangtze, Huai, and Yellow Rivers, killing 1–4 million and becoming one of history’s deadliest natural disasters; the European banking crisis of 1931 begins with the collapse of Creditanstalt, spreading financial turmoil across Austria and Germany and deepening the Great Depression; the Mukden Incident in Manchuria sees a staged explosion by Japanese forces used to justify invasion, setting the stage for the Second Sino-Japanese War; the Hawke's Bay earthquake strikes New Zealand’s North Island, killing 256 and prompting a massive Art Deco rebuilding of Napier; the Ahmed Barzani revolt erupts in northern Iraq as Kurdish forces challenge the government, highlighting ethnic tensions; and the Empire State Building opens in New York City, becoming the world’s tallest skyscraper and a symbol of modern ambition.
1931 in various calendars
Gregorian calendar1931
MCMXXXI
Ab urbe condita2684
Armenian calendar1380
ԹՎ ՌՅՁ
Assyrian calendar6681
Baháʼí calendar87–88
Balinese saka calendar1852–1853
Bengali calendar1337–1338
Berber calendar2881
British Regnal year21 Geo. 5 – 22 Geo. 5
Buddhist calendar2475
Burmese calendar1293
Byzantine calendar7439–7440
Chinese calendar庚午年 (Metal Horse)
4628 or 4421
    — to —
辛未年 (Metal Goat)
4629 or 4422
Coptic calendar1647–1648
Discordian calendar3097
Ethiopian calendar1923–1924
Hebrew calendar5691–5692
Hindu calendars
 - Vikram Samvat1987–1988
 - Shaka Samvat1852–1853
 - Kali Yuga5031–5032
Holocene calendar11931
Igbo calendar931–932
Iranian calendar1309–1310
Islamic calendar1349–1350
Japanese calendarShōwa 6
(昭和6年)
Javanese calendar1861–1862
Juche calendar20
Julian calendarGregorian minus 13 days
Korean calendar4264
Minguo calendarROC 20
民國20年
Nanakshahi calendar463
Thai solar calendar2473–2474
Tibetan calendarལྕགས་ཕོ་རྟ་ལོ་
(male Iron-Horse)
2057 or 1676 or 904
    — to —
ལྕགས་མོ་ལུག་ལོ་
(female Iron-Sheep)
2058 or 1677 or 905

1931 (MCMXXXI) was a common year starting on Thursday of the Gregorian calendar, the 1931st year of the Common Era (CE) and Anno Domini (AD) designations, the 931st year of the 2nd millennium, the 31st year of the 20th century, and the 2nd year of the 1930s decade.

Events

[edit]

January

[edit]

February

[edit]
February 10: New Delhi becomes India's capital
February 21: Ford Trimotor hijacked
  • February 4 – Soviet leader Joseph Stalin gives a speech calling for rapid industrialization, arguing that only strong industrialized countries will win wars, while "weak" nations are "beaten". Stalin states: "We are fifty or a hundred years behind the advanced countries. We must make good this distance in ten years. Either we do it, or they will crush us." The first five-year plan in the Soviet Union is intensified, for the industrialization and collectivization of agriculture.
  • February 10 – Official inauguration ceremonies for New Delhi as the capital of India begin.[4]
  • February 16Pehr Evind Svinhufvud is elected president of Finland.
  • February 21Peruvian revolutionaries hijack a Ford Trimotor aeroplane, and demand that the pilot drop propaganda leaflets over Lima.

March

[edit]

April

[edit]

May

[edit]
May 1: Empire State Building is completed.

June

[edit]
  • June–November – 1931 China flood: the Yangtze and Huai Rivers flood in a populous region, leaving an estimated 422,000 dead (150,000 drowned) with many more dying of consequential starvation and disease in the aftermath.[6]
  • June 5
    • German Chancellor Heinrich Brüning visits London, where he warns British Prime Minister Ramsay MacDonald that the collapse of the Austrian banking system, caused by the bankruptcy of the Creditanstalt, has left the entire German banking system on the verge of collapse.
    • Anti-Chinese rioting occurs in Pyongyang. Approximately 127 Chinese people are killed, 393 wounded, and a considerable number of properties are destroyed by Korean residents.[7]
  • June 14Saint-Philibert disaster: The overloaded pleasure craft Saint-Philibert, carrying trippers home to Nantes from the Île de Noirmoutier, sinks at the mouth of the River Loire in France; over 450 drown.
  • June 19
  • June 23July 1Wiley Post and Harold Gatty accomplish the first round-the-world flight in a single-engine plane, flying eastabout from Roosevelt Field, New York, in 8 days, 15 hours, 51 minutes.[8]

July

[edit]

August

[edit]

September

[edit]
September 18: The Mukden Incident: Incident Museum in Shenyang

October

[edit]

November

[edit]

December

[edit]

Births

[edit]
Births
January · February · March · April · May · June · July · August · September · October · November · December

January

[edit]
Robert Duvall
Caterina Valente
James Earl Jones
Sam Cooke

February

[edit]
Boris Yeltsin
Dries van Agt
Isabel Perón
James Dean

March

[edit]
Mikhail Gorbachev
Chun Doo-hwan
León Febres Cordero
Rupert Murdoch
William Shatner
Leonard Nimoy

April

[edit]

May

[edit]
Willie Mays
Carroll Baker

June

[edit]
Raúl Castro
João Gilberto
Marla Gibbs
Fernando Henrique Cardoso
Olympia Dukakis

July

[edit]
Leslie Caron
Seyni Kountché

August

[edit]
Don King
Barbara Eden

September

[edit]
Ian Holm
Barbara Bain
Larry Hagman

October

[edit]
Desmond Tutu
A. P. J. Abdul Kalam

November

[edit]
Mwai Kibaki
Adolfo Pérez Esquivel

December

[edit]
Rita Moreno

Deaths

[edit]

January

[edit]
Louise, Princess Royal
Anna Pavlova
Otto Wallach
F. W. Murnau
Joe Masseria

February

[edit]

March

[edit]

April

[edit]

May

[edit]
Patriarch Damian I of Jerusalem
Hamaguchi Osachi

June

[edit]

July

[edit]

August

[edit]

September

[edit]
Archduke Leopold Salvator of Austria
Omar al-Mukhtar

October

[edit]
Thomas Edison

November

[edit]

December

[edit]

Nobel Prizes

[edit]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
1931 marked a severe escalation in the global economic crisis of the Great Depression, with bank failures spreading from Europe to intensify unemployment and financial instability worldwide, including food riots in American cities and the collapse of major institutions like Austria's Creditanstalt. The year also witnessed aggressive imperial expansion, as the Mukden Incident—a staged explosion on a Japanese railway line near Shenyang on September 18—served as pretext for the Imperial Japanese Army's rapid occupation of Manchuria, defying international norms and foreshadowing broader conflicts. Amid these turmoil, engineering triumphs endured, highlighted by the completion and opening of the Empire State Building in New York City on May 1, standing at 1,250 feet as the tallest structure in the world at the time, constructed in just over a year despite the downturn. Catastrophic natural events compounded human suffering, such as the magnitude 7.8 Hawke's Bay earthquake in New Zealand on February 3, which demolished cities like Napier and Hastings, claiming 256 lives and injuring hundreds more. Politically, the Statute of Westminster, enacted on December 11, granted full legislative independence to the British dominions of Australia, Canada, Newfoundland, New Zealand, South Africa, and the Irish Free State, placing them on equal constitutional footing with the United Kingdom and requiring their assent for changes to the royal succession, thereby restructuring the British Empire toward greater dominion autonomy.

Historical Context

Economic Conditions and the Great Depression

In 1931, the intensified globally, marked by widespread banking failures, contracting trade, and rising unemployment as economies grappled with deflationary pressures under the gold standard regime. The year saw a sharp escalation in financial instability, beginning with the collapse of , Austria's largest bank, on May 11, which exposed vulnerabilities in Central European financial systems heavily intertwined through short-term credits and trade dependencies. This failure triggered a cascade of s and insolvencies across and other nations, exacerbating liquidity shortages and credit contraction that deepened the downturn. Industrial production continued to plummet, with world trade volumes having already fallen by over 60% from 1929 peaks, as protectionist measures like the U.S. Smoot-Hawley Tariff of 1930 further stifled international commerce. In the United States, economic contraction persisted with declining by approximately 6% from 1930 levels, while surged to 15.9% of the labor force, affecting nearly 8 million workers amid factory shutdowns and farm foreclosures. failures accelerated, with over 2,000 institutions collapsing in 1931 alone, eroding public confidence and reducing the money supply by nearly 30% cumulatively since 1930, which fueled and discouraged investment. President Hoover's administration pursued balanced budgets and adherence to gold convertibility, policies that critics later argued prolonged by limiting monetary expansion, though proponents viewed them as necessary to maintain fiscal credibility. Europe faced acute strains, culminating in Britain's abandonment of the gold standard on September 21, 1931, after speculative attacks depleted reserves and forced the to suspend convertibility to avert a sterling crisis. This decision, prompted by budget deficits, labor unrest, and war debt burdens, allowed for devaluation of the pound by about 30%, which facilitated export competitiveness but signaled the unraveling of the interwar gold system and contributed to fragmented currency blocs. In , the banking crisis peaked with the failure of major institutions like Danatbank in , leading to capital controls and economic isolation that heightened political extremism. These events underscored how rigid monetary frameworks amplified shocks, with empirical analyses indicating that countries exiting gold earlier experienced milder contractions compared to those clinging to it longer.

Geopolitical Tensions and Global Instability

The primary geopolitical tension in 1931 centered on East Asia, where Japan staged the Mukden Incident on September 18 as a pretext for invading Manchuria. An explosion damaged a short section of the Japanese-owned South Manchuria Railway near Mukden (present-day Shenyang), which Japanese military officers, including those from the Kwantung Army, fabricated and attributed to Chinese forces. This false flag operation enabled the rapid deployment of Japanese troops, who seized key cities and initiated the occupation of the resource-rich region. The invasion, conducted by approximately 10,000 Japanese soldiers initially, expanded quickly, overwhelming Chinese defenses under Marshal Zhang Xueliang, who ordered a non-resistance policy to avoid broader war. By late , Japanese forces controlled major Manchurian centers, prompting to appeal to the League of Nations on September 21. The Kwantung Army's unauthorized actions reflected internal Japanese military autonomy, bypassing civilian government oversight and escalating imperial ambitions amid economic pressures from the . The responded by establishing the Lytton Commission in December 1931 to investigate, but its deliberations extended into 1932, revealing institutional paralysis. Japan rejected preliminary condemnations and continued consolidation, establishing the puppet state of in 1932. The issued the on January 7, 1932, refusing to recognize territorial changes achieved by force, yet stopped short of military or economic intervention. This episode underscored the League's inability to enforce , as major powers prioritized and economic woes over confrontation. Elsewhere, minor border clashes occurred, such as the Saudi-Yemeni skirmishes in 1931 over disputed territories, but these paled in scale compared to . Colonial unrest, including the revolt against British rule, highlighted imperial strains but did not precipitate major international crises. The Manchurian aggression thus epitomized 1931's global instability, eroding faith in post-World War I order and foreshadowing unchecked expansionism.

Events

January

On January 1, the University of Alabama defeated Washington State University 24–0 in the 17th Rose Bowl Game, held at the Rose Bowl Stadium in Pasadena, California, before a crowd of approximately 60,000 spectators. Alabama's offense overwhelmed Washington State's defense, which had allowed only 20 points to major opponents during the 1930 regular season. The reflected ongoing Depression-era volatility, with the closing at 169 on January 2, en route to a year-end low of 77.9. In , Representative introduced legislation authorizing immediate cash payments of veterans' bonuses, amid rising unemployment and veteran hardship; this measure foreshadowed larger debates and the 1932 march, though it did not pass at the time. On January 3, center Nels Stewart scored twice against the in 4 seconds—the fastest pair of goals in NHL history—assisted by Hooley Smith in a 2–0 victory. Stewart's tally came at 8:28 and 8:32 of the second period, a record matched only in 1995. Inventor filed his final patent application on January 13 for a "holder for article to be electroplated," an apparatus to improve efficiency by securing objects during the process; Edison, aged 83, held over 1,000 U.S. patents lifetime. In , Sir Isaac Alfred Isaacs was sworn in as Governor-General on January 22, becoming the first native-born Australian to hold the office despite initial opposition from King George V, who preferred British appointees; Isaacs, a former , served until 1936. Charlie Chaplin's silent romantic comedy premiered on January 30 at the , featuring Chaplin as pursuing a blind flower girl amid economic disparity themes resonant with the era; the film, with synchronized music but no dialogue, drew acclaim for its blend of pathos and .

February

On , a magnitude 7.8 earthquake struck the region of at 10:47 a.m., with its epicenter 15 kilometers north of Napier. The quake, the deadliest in 's history, killed 256 people—161 in Napier, 93 in , and 2 in —while injuring hundreds and rendering thousands homeless. It devastated central Napier and , leveling unreinforced masonry , igniting fires from ruptured gas lines, and causing landslides that blocked roads; the ensuing reconstruction transformed Napier into an architectural hub. On February 5, British racing driver set a new world land speed record of 245.733 mph (395.37 km/h) at , using his Blue Bird vehicle equipped with a aero engine. This marked his second record-breaking run at the site, surpassing the previous mark by over 14 mph and earning him a knighthood for his achievements in speed. In the United States, amid deepening hardships, food riots erupted in cities including and St. Paul, where crowds stormed grocery stores to seize provisions amid widespread and . On February 13, Viceroy Lord Irwin inaugurated as India's capital, fulfilling plans announced in to shift from Calcutta; the ceremony highlighted the completion of ' and Herbert Baker's neoclassical designs after two decades of construction. The horror film , directed by and starring as the vampire count, premiered in on February 12 before wider U.S. release on February 14, adapting Bram Stoker's novel and launching Universal's monster movie era.

March

On March 3, 1931, the passed a designating "" as the national anthem, with President signing it into law the same day. The resolution formalized the song, originally written by in 1814, amid growing popularity during and subsequent naval traditions. On March 5, 1931, and Viceroy Lord Irwin signed the Gandhi-Irwin Pact in , temporarily suspending the Indian National Congress's campaign in exchange for the release of political prisoners and concessions on salt production. The agreement aimed to facilitate Gandhi's participation in the upcoming Second Round Table Conference in London, though it drew criticism from more radical nationalists for compromising on full independence demands. Bhagat Singh, Sukhdev Thapar, and Shivaram Rajguru—Indian revolutionaries convicted for the 1928 Lahore Conspiracy Case bombing and the killing of a British police officer—were executed by hanging on March 23, 1931, in Lahore Central Jail, two days before their original sentence date, amid protests over procedural haste. Their deaths galvanized anti-colonial sentiment, with widespread mourning and strikes across India, including hartals that escalated tensions. Communal riots erupted in on March 25, 1931, triggered by Hindu-Muslim clashes during mourning processions for , resulting in over 300 deaths and widespread property damage in one of the most severe outbreaks of intercommunal violence in British India up to that point. British authorities deployed troops to restore order, while the riots highlighted deepening sectarian divides amid the independence movement. On March 19, 1931, Nevada's state legislature legalized most forms of casino through Assembly Bill 98, signed by Governor Fred B. Balzar, as a revenue measure to combat economic decline during the . The law permitted licensed operations, leading to immediate casino openings in Reno and laying the foundation for Las Vegas's later growth as a hub. On March 31, 1931, Notre Dame football coach , along with seven others, died in a Fokker F-10 plane crash near Bazaar, Kansas, operated by Transcontinental & Western Air, due to structural failure in the wooden wings exacerbated by moisture and design flaws. , renowned for innovating forward passes and achieving a 105-12-5 record, was en route to Hollywood for a role; the tragedy prompted U.S. reforms, including scrutiny of wood-framed aircraft.

April

On April 1, 1931, a magnitude 5.6 struck , the capital of , devastating the city and triggering fires that destroyed much of its infrastructure. The disaster killed approximately 2,500 people and left tens of thousands homeless, exacerbating Nicaragua's political instability amid U.S. occupation forces' presence. U.S. President promptly sent a message of sympathy to Nicaraguan President José María Moncada, highlighting international concern over the event's humanitarian toll. On April 2, 1931, during an game in , between the local team and the New York Yankees, 17-year-old pitcher struck out and in succession. Mitchell, signed by the as a amid the Great Depression's economic pressures on sports, faced the Yankees' "" after the starting pitcher faltered, walking before being removed. The feat, witnessed by about 4,000 spectators, challenged gender norms in , though Commissioner later voided her contract, citing the sport's unsuitability for women. From April 6 to 9, 1931, in , the first trials of the ""—nine Black teenagers aged 13 to 19 accused of raping two white women on a —resulted in swift convictions for eight defendants, all sentenced to death by an all-white . The arrests had occurred on March 25 following a fight on the train, but the trials, conducted amid mob threats and inadequate defense (one lawyer for all, with no time for preparation), exemplified Southern racial biases and failures during the Jim Crow era. The case drew national scrutiny, with the ACLU and International Labor Defense intervening on appeal, highlighting coerced testimonies from accusers and Ruby Bates. Subsequent U.S. rulings in 1932 and 1935 overturned convictions on grounds of mob influence and jury exclusion of Blacks, marking precedents for fair trials. On April 14, 1931, following municipal elections that favored republican candidates, the Second Spanish Republic was proclaimed in , ending the Bourbon monarchy after King Alfonso XIII's regime faltered amid economic woes and Primo de Rivera's dictatorship. The king, facing pressure from military and civilian unrest, departed for exile the next day without formal abdication, allowing a provisional government under to enact reforms like land redistribution and secular education. This shift toward democracy initially garnered support across ideological lines but sowed divisions that contributed to the by 1936.

May


On May 1, 1931, the Empire State Building was officially dedicated in New York City after 410 days of construction, standing at 1,454 feet (443 meters) tall and surpassing the Chrysler Building as the world's tallest structure. The project, led by architects Shreve, Lamb & Harmon and financed by John J. Raskob and Pierre S. du Pont, employed thousands during the early Great Depression but resulted in high vacancy rates due to economic stagnation, with the building earning the nickname "Empty State Building" in its initial years.
On May 11, 's largest bank, Österreichische Credit-Anstalt für Handel und Gewerbe, revealed losses exceeding half its capital from bad loans tied to Central European economic weaknesses, prompting government intervention and the first major banking collapse of the European phase of the . This event triggered deposit runs across , , and beyond, exacerbating shortages and contributing to widespread bank failures that deepened global deflationary pressures. On May 27, Belgian physicist and assistant Paul Kipfer ascended in a pressurized aluminum gondola attached to a hydrogen balloon from , Germany, reaching an altitude of 15,781 meters (51,775 feet) and becoming the first humans to enter the , where they conducted measurements of cosmic radiation. The flight, lasting about eight hours before a safe landing in , demonstrated the feasibility of high-altitude manned and advanced understanding of atmospheric layers.

June

On June 5, federal authorities indicted mobster Alphonse "Al" on 22 counts of evasion covering the years 1925 through 1929, marking a pivotal legal action against during . , previously untouchable for bootlegging and violence, faced charges for failing to report over $1 million in income, leading to his release on $50,000 bail pending trial. This prosecution, driven by the U.S. under pressure from federal prosecutors, exemplified the government's strategy of using tax laws to dismantle criminal enterprises lacking direct evidence of underlying felonies. On June 9, American physicist received U.S. 1,809,271 for a system of "propulsion of aircraft" utilizing engines to generate via high-velocity gas blasts, advancing early concepts in jet and . The design incorporated or solid propellants to power aircraft independently of atmospheric air, addressing limitations of propeller-driven flight at high altitudes or speeds, though practical implementation remained decades away due to technological constraints. Goddard's work, funded partly by the Guggenheim Foundation, laid foundational principles for later developments, prioritizing verifiable engineering over speculative claims. Amid escalating global economic distress from the , U.S. President proposed on June 20 a one-year moratorium on intergovernmental war debt and reparations payments, aiming to alleviate financial strains on debtor nations like and Britain. The initiative suspended approximately $3.25 billion in Allied repayments to the U.S. while conditioning German reparations relief on equivalent concessions, reflecting Hoover's causal view that liquidity shortages, not structural flaws, drove the crisis. Endorsed by 15 nations by July, the moratorium provided temporary relief but failed to halt deepening deflationary spirals, as evidenced by subsequent banking collapses in . On June 23, American aviators Wiley Post and Harold Gatty departed Roosevelt Field, New York, in a aircraft, initiating the first successful circumnavigation of the globe by a fixed-wing plane in under eight days, covering 15,474 miles eastward via , , and . This feat demonstrated advancements in long-range navigation and fuel efficiency amid Depression-era innovation, though it relied on established autogiro and radio aids rather than novel propulsion.

July

In July 1931, grappled with intensifying financial instability amid the , highlighted by the collapse of Danatbank on July 13, which triggered widespread s across . The Darmstädter und Nationalbank (Danatbank), one of 's largest universal banks, suspended payments after revelations of substantial losses tied to failed investments and loans, leading to panic withdrawals and the temporary closure of stock exchanges and banking operations. This crisis exacerbated and economic contraction, contributing to political radicalization as support for extremist parties surged in subsequent elections. The , proposed by U.S. President in June and taking effect around mid-year, offered a one-year suspension of intergovernmental war debt and reparations payments to alleviate global financial strain, though its implementation faced delays and opposition, particularly from . In the United States, Municipal opened on July 1, providing a new venue for Major League Baseball's Indians and the NFL's Browns with a capacity of 78,189. Sports achievements marked the month, with German boxer retaining the heavyweight title on July 3 by technical knockout against American Young Stribling in a bout drawing over 75,000 spectators at the . At Wimbledon, Cilly Aussem of won the women's singles on July 3, defeating , while American Sidney Wood claimed the men's title on July 4 via due to his opponent's injury. The U.S. Open golf tournament concluded on July 6 with Billy Burke victorious after a 36-hole playoff against George Von Elm. Finnish runner set a world record in the two-mile event on July 24, clocking 8:59.6 in . French cyclist Antonin Magne secured the on July 26, marking his second victory in the grueling race. France also captured the , defeating 3-2 in the International Lawn Tennis Challenge final on the same day. On , at a convention in , the International Bible Students Association, led by , adopted the name to distinguish itself from other Bible Student groups and emphasize its identity based on :10. Other notable occurrences included the launch of the SS Mariposa on July 18, the first ship equipped with air conditioning, and a tragic fire in on that killed 48 people.

August

The escalation of the reached catastrophic levels in August, as heavy rains caused dikes along the Yangtze River to collapse on , submerging vast regions and contributing to an estimated 150,000 immediate drownings by early in the month. On , levees around Gaoyou burst, leading to the Yangtze's overflow and the deaths of between 10,000 and 15,000 people in a single surge, exacerbating , , and displacement across that ultimately claimed 1 to 4 million lives overall. These events, driven by and inadequate infrastructure, overwhelmed relief efforts and highlighted vulnerabilities in densely populated riverine areas. In , the German banking crisis intensified amid the , with runs on institutions continuing into August following the July collapse of Danatbank, prompting government-imposed bank holidays and capital controls to stem withdrawals and liquidity shortages. This turmoil, rooted in overleveraged loans and international strains, deepened —reaching 30% in urban areas—and fueled political extremism, as evidenced by rising Nazi support in subsequent elections. Concurrently, on August 29, and the initialed a draft non-aggression and neutrality pact, committing each to abstain from alliances or actions aiding an aggressor against the other, amid mutual concerns over regional instability. Elsewhere, on August 2, a referendum in Catalonia approved a draft statute granting regional autonomy within the newly established Spanish Second Republic, with 99.5% approval from 75% of eligible voters, reflecting strong separatist sentiments post-monarchy. This vote, held amid Spain's republican transition, paved the way for limited self-governance, though implementation faced centralist opposition. In the Soviet Union, collectivization advanced aggressively, with 58% of peasant holdings consolidated by August 1, enforcing grain requisitions that sparked rural resistance and contributed to widespread famine precursors.

September

On September 18, 1931, the Mukden Incident occurred when Japanese Kwantung Army officers detonated a small amount of dynamite on a section of the Japanese-owned South Manchuria Railway near Mukden (modern Shenyang) in Chinese Manchuria, creating minimal damage to the tracks. Japanese forces immediately blamed local Chinese dissidents and used the event as a pretext to seize Mukden that night, initiating a broader invasion of Manchuria despite orders from Tokyo to limit actions to the railway zone. The staged explosion, later confirmed as a false-flag operation by Japanese military personnel including Lieutenant Kawamoto and Captain Nakamura under Colonel Itagaki's direction, bypassed civilian government oversight and escalated into the establishment of the puppet state of Manchukuo by 1932. Amid the deepening , Britain abandoned the gold standard on September 21, 1931, when the suspended convertibility of the into gold following severe speculative attacks on the currency and rapid depletion of gold reserves. This decision, prompted by financial strains including the collapse of the bank in earlier that year and subsequent European banking crises, devalued the pound by approximately 30% and triggered a wave of currency depreciations worldwide, exacerbating global economic instability. The move marked a significant policy shift, allowing monetary expansion but contributing to protectionist measures and trade barriers as nations sought to protect domestic economies.

October

On 1 October, the Spanish Cortes approved , granting voting rights to women aged 23 and older, making the first Spanish-speaking nation to extend unrestricted suffrage to women. That same day in , , riots erupted as approximately 50,000 unemployed workers protested cuts to ; clashes with police led to widespread looting of stores and the arrest of a Labour for inciting the crowd. On 10 October, Adolf Hitler met German President Paul von Hindenburg for the first time at the presidential palace in Berlin; Hindenburg, unimpressed by Hitler's demeanor and perceived lack of statesmanship, dismissed him abruptly, later describing the Nazi leader as unfit for high office. The Christ the Redeemer statue atop Corcovado Mountain in Rio de Janeiro, Brazil—a 30-meter-tall Art Deco reinforced concrete figure symbolizing Christianity—was inaugurated on 12 October following nearly a decade of construction funded by public donations. Chicago gangster Alphonse "Al" Capone was convicted on 17 October in federal court of five counts of income tax evasion and two counts of failing to file tax returns, for which he had underreported income from illegal activities including bootlegging and gambling; the verdict marked the culmination of a U.S. government strategy to prosecute him on financial charges after failed attempts on murder and Prohibition violations. American inventor Thomas Alva Edison, holder of over 1,000 patents including the practical and , died on 18 October at his , home at age 84 from complications of diabetes. On 24 October, Capone was sentenced by Judge James Herbert Wilkerson to 11 years in federal prison, a $50,000 fine, and court costs of $7,692, effectively dismantling his criminal empire; he served time at Atlanta Penitentiary before transfer to Alcatraz. Earlier that day, New York Governor dedicated the spanning the between and —completed eight months ahead of schedule at a cost of $17 million—praising its engineering as a symbol of American progress amid the .

November

On November 3, the Company announced the successful development of (initially called Duprene), the first with properties comparable to , marking a breakthrough in derived from . This innovation, led by chemist and team, addressed vulnerabilities in natural rubber supply chains amid global economic pressures. On November 7, and communist forces proclaimed the in , Province, establishing a with Mao as chairman, modeled on Soviet structures and claiming authority over communist-held territories. The declaration, timed to coincide with the anniversary of the Russian , adopted a emphasizing land redistribution and , though its control remained limited to rural bases amid Nationalist encirclement. In the Hessian state election on November 15, the (NSDAP) secured a significant victory, increasing its seats in the from 7 to 26 and capturing approximately 38% of the vote, reflecting growing discontent with the government's austerity measures during the . This outcome alarmed observers, as it demonstrated the party's appeal in rural and Protestant areas, foreshadowing further electoral gains. An explosion at Bentley Colliery in Doncaster, Yorkshire, on November 20 killed 45 miners due to firedamp ignition in the Barnsley Seam, one of the deadliest mining disasters in British history at the time. Rescue efforts recovered 40 bodies, with five remaining entombed; official inquiries attributed the blast to inadequate ventilation and safety lamp failures in a gob fire-prone area. On November 26 (Thanksgiving Day), chemist Harold Urey at Columbia University identified definitive spectroscopic evidence for a heavy isotope of hydrogen (mass-2), later named deuterium, through distillation and analysis of liquid hydrogen samples. This discovery, confirmed via band spectrum shifts, laid groundwork for isotope separation techniques and earned Urey the 1934 Nobel Prize in Chemistry.

December

On December 1, the Ottawa branch of the British Royal Mint commenced operations independently as the Royal Canadian Mint, marking Canada's assumption of full control over its coinage production amid growing dominion autonomy. Earlier that day, the Soviet Union implemented a policy shifting to a six-day work week with one rest day every six days, aiming to boost industrial productivity during the first Five-Year Plan by staggering worker days off to maintain continuous factory operations. On December 3, Alka-Seltzer, an effervescent antacid tablet combining aspirin, sodium bicarbonate, and citric acid, was introduced to the U.S. market by Miles Laboratories as a remedy for indigestion and headaches. In sports, the Canadian Football League's Grey Cup final occurred on December 5 at Molson Stadium in , where the Montreal AAA Winged Wheelers defeated the Toronto Balmy Beach Beachers 22–0 before 6,000 spectators, securing the Winged Wheelers' first championship in the event's 19th edition. On December 9, Spain's Constituent Cortes ratified the Constitution of 1931, which enshrined , , , and a , solidifying the Second Spanish Republic established after King Alfonso XIII's earlier that year; the document's leftist provisions, including Catalan autonomy and subordination to rule, fueled ongoing polarization between republicans and monarchists. The Nobel Prizes were awarded on December 10: received the Literature prize posthumously for his lyrical poetry rooted in Swedish rural life, while and shared the Peace Prize— for her internationalist and social reform work, Butler for promoting arbitration and the League of Nations—amid global economic turmoil that tested such ideals. December 11 saw the Statute of Westminster receive royal assent from King George V, granting legislative independence to the British dominions of , , , Newfoundland, , and the by removing the British Parliament's override authority, effectively recognizing their equal sovereign status within the . Facing severe deflation and banking crises during the , abandoned the gold standard on December 13, allowing the yen to depreciate sharply, which facilitated export recovery but intensified militarist pressures for expansionist policies in . In , cricketer scored 219 runs for against on December 18–19 in , extending his dominant form in a match and underscoring his statistical superiority in averages exceeding 100. On December 28, Italian Prime Minister Benito Mussolini's government enacted a law mandating oaths of allegiance to the fascist regime from all university professors and schoolteachers, with over 90% compliance but notable refusals leading to dismissals, consolidating ideological control over education. That same day, arrived in Bombay after attending the second Round Table Conference in , where his advocacy for dominion status and opposition to separate electorates for untouchables yielded limited concessions, prompting renewed non-cooperation campaigns against British rule upon his return.

Science and Technology

Inventions and Engineering Feats

The Empire State Building, an iconic Art Deco skyscraper in New York City, was completed on May 1, 1931, after construction began on March 17, 1930, representing a remarkable engineering achievement amid the Great Depression. Standing at 1,250 feet (381 meters) with 102 stories, it was the tallest building in the world at the time, constructed in just 410 days using innovative steel-frame techniques and prefabricated components, employing up to 3,400 workers who erected an average of 4.5 floors per week. In , American physicist Ernest O. Lawrence developed the first practical in 1931 at the , a device that accelerates charged particles in a spiral path using a and alternating electric voltage, enabling higher-energy collisions than previous linear accelerators. This invention laid the groundwork for nuclear research and earned Lawrence the in 1939. The was patented by in 1931, introducing a dry-shaving device with oscillating blades protected by a comb-like guard, eliminating the need for or and revolutionizing by offering convenience and over traditional straight razors or early razors. Schick's design, first produced commercially in 1931, featured a handheld unit powered by , marking a shift toward motorized personal care appliances. German physicists and Max Knoll constructed the first in 1931, utilizing electron beams instead of light to achieve resolutions up to 1,000 times greater than optical microscopes, allowing visualization of structures at the nanoscale for the first time. This breakthrough, refined by Ruska in subsequent years, earned him the in 1986 and transformed fields like and . The , spanning the between and , opened to traffic on October 25, 1931, engineered by with a main span of 3,500 feet (1,067 meters), making it the longest in the world at the time and a testament to advanced cable suspension and aerodynamic design principles. Constructed with 14,000 miles of wire in its cables, it facilitated increased vehicular traffic and symbolized inter-state connectivity during economic hardship.

Key Scientific Discoveries

In physics, Ernest O. Lawrence invented the on January 2, a that uses a to bend charged particles into a spiral path, enabling higher energies for nuclear studies than previous linear accelerators. This device laid the groundwork for subsequent atomic research, including fission experiments. Ernst Ruska and Max Knoll constructed the first prototype electron microscope in 1931 at the Technical University of Berlin, demonstrating that magnetic coils could focus electron beams to achieve resolutions beyond optical limits, magnifying up to 400 times initially. Ruska's design proved electrons could form images with greater detail than light, marking the start of electron microscopy despite early technical challenges like vacuum requirements. In chemistry, detected evidence of , the heavy of (mass-2), on Thanksgiving Day 1931 through spectroscopic analysis of liquid hydrogen samples enriched via and . This 's existence, predicted theoretically but unconfirmed until Urey's experiment, enabled studies of nuclear reactions and earned Urey the 1934 . Separately, the was awarded to and Friedrich Bergius for developing high-pressure chemical synthesis methods, including scalable from and under extreme conditions (200-300 atmospheres, 400-500°C). In astronomy, Karl Jansky identified extraterrestrial radio emissions in 1931 while investigating static interference for Bell Laboratories; using a array, he pinpointed signals correlating with the Milky Way's position, establishing as a field. These faint, steady noises, distinct from thunderstorms, originated from galactic , later confirmed by maps of cosmic sources. In , Otto Warburg's research on culminated in the 1931 for discovering the respiratory enzyme's (cytochrome oxidase) role in oxygen-dependent oxidation, elucidated through manometric measurements of tissue slices showing iron-containing catalysts facilitate in mitochondria. Warburg's findings quantified how enzymes link atmospheric oxygen to organic substrates, advancing understanding of aerobic metabolism over anaerobic alternatives.

Culture and Society

Arts, Literature, and Media

In literature, Pearl S. Buck's novel , depicting the life of a Chinese peasant farmer amid cycles of prosperity and famine, became the bestselling book of 1931 and 1932, later earning the in 1932. published in October, an experimental work structured as six interwoven soliloquies exploring consciousness and time through the lives of six friends. The awarded the posthumously to poet on October 8 for his lyrical depictions of rural Swedish life, recognizing works like Fridolin's Songs (1901) and later collections emphasizing nature and folklore. In film, Charlie Chaplin's City Lights premiered on January 30, featuring Chaplin as aiding a blind flower girl, blending and without dialogue to reach global audiences during the early Depression era. Horror classics emerged with ' Dracula, directed by and starring , released February 14, and James Whale's Frankenstein, with as the monster, on November 21; both adapted literary works and established the studio's monster genre, grossing significantly amid economic hardship. Fritz Lang's German thriller M, starring as a child murderer pursued by police and criminals, debuted May 11, pioneering sound techniques for tension and critiquing urban vigilantism. RKO's Cimarron, a Western epic about Oklahoma land rushes, won the in 1932 for its 1931 release. Music saw the debut of George Gershwin's Broadway musical on October 14, featuring hits like "" performed by , which ran for 272 performances and advanced integration in theater. Popular songs included "All of Me" by Seymour Simons and Gerald Marks, recorded by artists like in early versions, and Herman Hupfeld's "As Time Goes By," introduced in the revue Everybody's Welcome. RCA Victor introduced the long-playing record on October 28, enabling full performances of classical pieces on 12-inch, 33⅓ rpm discs coated in lacquer, a technological shift from 78 rpm shellsac for longer playback without interruptions. Visual arts included Salvador Dalí's oil painting , completed in August and featuring melting watches on a surreal landscape, symbolizing the fluidity of time influenced by Einstein's relativity; it exemplified Dalí's and was later acquired by the . The opened a major retrospective in New York, showcasing over 140 works from his Fauvist and later periods, highlighting his color innovations amid the shift toward abstraction. founded the Whitney Museum of American Art on November 18, focusing on contemporary U.S. artists excluded from European-dominated institutions, with initial collections emphasizing realism and regionalism. Media developments centered on radio expansion, with Father Charles Coughlin's broadcasts reaching millions via until network restrictions led to his independent operation from , where his anti-banking sermons drew controversy for blending and . Experimental television advanced with installing a transmitter atop the on October 30 for shortwave tests, and demonstrating transatlantic transmissions from to New York using ultra-shortwaves. These efforts marked early steps toward practical TV, though limited to mechanical scanning and low-resolution images.

Social Movements and Milestones

The intensified social unrest worldwide in 1931, spurring mass protests by the unemployed demanding government relief, jobs, and insurance against economic hardship. In the United States, the Communist Party-led Unemployed Councils organized over 100 demonstrations across 47 cities, including repeated actions in New York, , , and , where participants rallied for immediate aid and work programs amid unemployment rates exceeding 15 percent nationally. These efforts highlighted causal links between collapse, bank failures, and widespread destitution, with protesters often facing police violence but achieving localized concessions like eviction moratoriums in some municipalities. Similarly, in Britain, the National Unemployed Workers' Movement culminated in the National Hunger March, where approximately 1,600 marchers from regional centers converged on in October and November, petitioning for full-wage irrespective of age, sex, or prior status; the march exposed failures in means-tested relief systems that exacerbated for over 2.5 million jobless workers. A landmark civil rights case unfolded in the U.S. with the incident on March 25, when nine African American teenagers, aged 13 to 20, were arrested in Jackson County, Alabama, after a fight on a freight train involving white hobos; two white women, and Ruby Bates, accused them of rape, prompting rapid trials in April that resulted in death sentences for eight defendants based on scant evidence, coerced testimonies, and an all-white jury excluding African Americans despite constitutional precedents. The International Labor Defense, affiliated with the , and the intervened with appeals, framing the trials as emblematic of Southern lynch-mob justice and racial disenfranchisement under that systematically barred Black jurors and witnesses; international protests ensued, pressuring Alabama Governor Benjamin Meek Miller for clemency, though initial retrials in November upheld convictions for most, underscoring entrenched biases in legal institutions where empirical data on false accusations and mob influence were routinely disregarded. Labor organizing advanced amid these crises, including the formation of the Alabama Sharecroppers' Union in Tallapoosa County, which united Black and white tenant farmers against exploitative landlords enforcing debt peonage and crop-lien systems that perpetuated poverty cycles independent of market fluctuations. Strikes punctuated the year, such as the action by construction workers protesting pay reductions from 50 cents to 30 cents per hour, hazardous conditions, and reassignments to lower-wage tasks; involving around 200 participants, it secured minor wage restorations after federal arbitration but revealed tensions between private contractors and laborers reliant on precursors for leverage. Internationally, Sweden's Ådalen in May saw timber workers and supporters halt operations against wage cuts and strikebreaking, drawing 5,000 demonstrators; on May 14, troops fired on the crowd, killing five and injuring several, an event that catalyzed public outrage and electoral shifts toward social democratic reforms by evidencing state overreach in suppressing economic grievances. These milestones reflected broader causal dynamics of industrial capitalism's vulnerabilities, with movements prioritizing material demands over ideological purity despite influences from communist organizers whose tactics, while amplifying visibility, sometimes prioritized over pragmatic gains.

Births

January

On January 1, the University of Alabama defeated Washington State University 24–0 in the 17th Rose Bowl Game, held at the Rose Bowl Stadium in Pasadena, California, before a crowd of approximately 60,000 spectators. Alabama's offense overwhelmed Washington State's defense, which had allowed only 20 points to major opponents during the 1930 regular season. The reflected ongoing Depression-era volatility, with the closing at 169 on January 2, en route to a year-end low of 77.9. In , Representative introduced legislation authorizing immediate cash payments of veterans' bonuses, amid rising unemployment and veteran hardship; this measure foreshadowed larger debates and the 1932 march, though it did not pass at the time. On January 3, center Nels Stewart scored twice against the in 4 seconds—the fastest pair of goals in NHL history—assisted by Hooley Smith in a 2–0 victory. Stewart's tally came at 8:28 and 8:32 of the second period, a record matched only in 1995. Inventor filed his final patent application on January 13 for a "holder for article to be electroplated," an apparatus to improve efficiency by securing objects during the process; Edison, aged 83, held over 1,000 U.S. patents lifetime. In , Sir Isaac Alfred Isaacs was sworn in as Governor-General on January 22, becoming the first native-born Australian to hold the office despite initial opposition from King George V, who preferred British appointees; Isaacs, a former , served until 1936. Charlie Chaplin's silent romantic comedy City Lights premiered on January 30 at the , featuring Chaplin as pursuing a blind flower girl amid economic disparity themes resonant with the era; the film, with synchronized music but no dialogue, drew acclaim for its blend of pathos and .

February

On February 3, a magnitude 7.8 earthquake struck the region of at 10:47 a.m., with its epicenter 15 kilometers north of Napier. The quake, the deadliest in 's history, killed 256 people—161 in Napier, 93 in , and 2 in —while injuring hundreds and rendering thousands homeless. It devastated central Napier and , leveling unreinforced masonry buildings, igniting fires from ruptured gas lines, and causing landslides that blocked roads; the ensuing reconstruction transformed Napier into an architectural hub. On February 5, British racing driver set a new world land speed record of 245.733 mph (395.37 km/h) at , using his Blue Bird vehicle equipped with a aero engine. This marked his second record-breaking run at the site, surpassing the previous mark by over 14 mph and earning him a knighthood for his achievements in speed. In the United States, amid deepening hardships, food riots erupted in cities including and St. Paul, where crowds stormed grocery stores to seize provisions amid widespread and . On February 13, Viceroy Lord Irwin inaugurated as India's capital, fulfilling plans announced in to shift from Calcutta; the ceremony highlighted the completion of ' and Herbert Baker's neoclassical designs after two decades of construction. The horror film , directed by and starring as the vampire count, premiered in on February 12 before wider U.S. release on February 14, adapting Bram Stoker's novel and launching Universal's monster movie era.

March

On March 3, 1931, the passed a designating "" as the national anthem, with President signing it into law the same day. The resolution formalized the song, originally written by in 1814, amid growing popularity during and subsequent naval traditions. On March 5, 1931, and Viceroy Lord Irwin signed the Gandhi-Irwin Pact in , temporarily suspending the Indian National Congress's campaign in exchange for the release of political prisoners and concessions on salt production. The agreement aimed to facilitate Gandhi's participation in the upcoming Second Round Table Conference in London, though it drew criticism from more radical nationalists for compromising on full independence demands. Bhagat Singh, Sukhdev Thapar, and Shivaram Rajguru—Indian revolutionaries convicted for the 1928 Lahore Conspiracy Case bombing and the killing of a British police officer—were executed by hanging on March 23, 1931, in Lahore Central Jail, two days before their original sentence date, amid protests over procedural haste. Their deaths galvanized anti-colonial sentiment, with widespread mourning and strikes across India, including hartals that escalated tensions. Communal riots erupted in on March 25, 1931, triggered by Hindu-Muslim clashes during mourning processions for , resulting in over 300 deaths and widespread property damage in one of the most severe outbreaks of intercommunal violence in British India up to that point. British authorities deployed troops to restore order, while the riots highlighted deepening sectarian divides amid the independence movement. On March 19, 1931, Nevada's state legislature legalized most forms of casino through Assembly Bill 98, signed by Governor Fred B. Balzar, as a revenue measure to combat economic decline during the . The law permitted licensed operations, leading to immediate casino openings in Reno and laying the foundation for Las Vegas's later growth as a hub. On March 31, 1931, Notre Dame football coach , along with seven others, died in a Fokker F-10 plane crash near Bazaar, Kansas, operated by Transcontinental & Western Air, due to structural failure in the wooden wings exacerbated by moisture and design flaws. , renowned for innovating forward passes and achieving a 105-12-5 record, was en route to Hollywood for a role; the tragedy prompted U.S. reforms, including scrutiny of wood-framed aircraft.

April

On April 1, 1931, a magnitude 5.6 struck , the capital of , devastating the city and triggering fires that destroyed much of its infrastructure. The disaster killed approximately 2,500 people and left tens of thousands homeless, exacerbating Nicaragua's political instability amid U.S. occupation forces' presence. U.S. President promptly sent a message of sympathy to Nicaraguan President José María Moncada, highlighting international concern over the event's humanitarian toll. On April 2, 1931, during an game in , between the local team and the New York Yankees, 17-year-old pitcher struck out and in succession. Mitchell, signed by the as a amid the Great Depression's economic pressures on sports, faced the Yankees' "" after the starting pitcher faltered, walking before being removed. The feat, witnessed by about 4,000 spectators, challenged gender norms in , though Commissioner later voided her contract, citing the sport's unsuitability for women. From April 6 to 9, 1931, in , the first trials of the ""—nine Black teenagers aged 13 to 19 accused of raping two white women on a —resulted in swift convictions for eight defendants, all sentenced to death by an all-white . The arrests had occurred on March 25 following a fight on the train, but the trials, conducted amid mob threats and inadequate defense (one lawyer for all, with no time for preparation), exemplified Southern racial biases and failures during the Jim Crow era. The case drew national scrutiny, with the ACLU and International Labor Defense intervening on appeal, highlighting coerced testimonies from accusers and Ruby Bates. Subsequent U.S. rulings in 1932 and 1935 overturned convictions on grounds of mob influence and exclusion of Blacks, marking precedents for fair trials. On April 14, 1931, following municipal elections that favored republican candidates, the Second Spanish Republic was proclaimed in , ending the Bourbon monarchy after King Alfonso XIII's regime faltered amid economic woes and Primo de Rivera's dictatorship. The king, facing pressure from military and civilian unrest, departed for exile the next day without formal abdication, allowing a provisional government under to enact reforms like land redistribution and secular education. This shift toward democracy initially garnered support across ideological lines but sowed divisions that contributed to the by 1936.

May


On May 1, 1931, the Empire State Building was officially dedicated in New York City after 410 days of construction, standing at 1,454 feet (443 meters) tall and surpassing the Chrysler Building as the world's tallest structure. The project, led by architects Shreve, Lamb & Harmon and financed by John J. Raskob and Pierre S. du Pont, employed thousands during the early Great Depression but resulted in high vacancy rates due to economic stagnation, with the building earning the nickname "Empty State Building" in its initial years.
On May 11, 's largest bank, Österreichische Credit-Anstalt für Handel und Gewerbe, revealed losses exceeding half its capital from bad loans tied to Central European economic weaknesses, prompting government intervention and the first major banking collapse of the European phase of the . This event triggered deposit runs across , , and beyond, exacerbating shortages and contributing to widespread bank failures that deepened global deflationary pressures. On May 27, Belgian physicist and assistant Paul Kipfer ascended in a pressurized aluminum gondola attached to a hydrogen balloon from , Germany, reaching an altitude of 15,781 meters (51,775 feet) and becoming the first humans to enter the , where they conducted measurements of cosmic radiation. The flight, lasting about eight hours before a safe landing in , demonstrated the feasibility of high-altitude manned and advanced understanding of atmospheric layers.

June

On June 5, federal authorities indicted mobster Alphonse "Al" on 22 counts of evasion covering the years 1925 through 1929, marking a pivotal legal action against during . , previously untouchable for bootlegging and violence, faced charges for failing to report over $1 million in income, leading to his release on $50,000 bail pending trial. This prosecution, driven by the U.S. under pressure from federal prosecutors, exemplified the government's strategy of using tax laws to dismantle criminal enterprises lacking direct evidence of underlying felonies. On June 9, American physicist received U.S. 1,809,271 for a system of "propulsion of aircraft" utilizing engines to generate via high-velocity gas blasts, advancing early concepts in jet and . The design incorporated or solid propellants to power aircraft independently of atmospheric air, addressing limitations of propeller-driven flight at high altitudes or speeds, though practical implementation remained decades away due to technological constraints. Goddard's work, funded partly by the Guggenheim Foundation, laid foundational principles for later developments, prioritizing verifiable engineering over speculative claims. Amid escalating global economic distress from the , U.S. President proposed on June 20 a one-year moratorium on intergovernmental war debt and reparations payments, aiming to alleviate financial strains on debtor nations like and Britain. The initiative suspended approximately $3.25 billion in Allied repayments to the U.S. while conditioning German reparations relief on equivalent concessions, reflecting Hoover's causal view that liquidity shortages, not structural flaws, drove the crisis. Endorsed by 15 nations by July, the moratorium provided temporary relief but failed to halt deepening deflationary spirals, as evidenced by subsequent banking collapses in . On June 23, American aviators Wiley Post and Harold Gatty departed Roosevelt Field, New York, in a aircraft, initiating the first successful circumnavigation of the globe by a fixed-wing plane in under eight days, covering 15,474 miles eastward via , , and . This feat demonstrated advancements in long-range navigation and fuel efficiency amid Depression-era innovation, though it relied on established autogiro and radio aids rather than novel propulsion.

July

In July 1931, grappled with intensifying financial instability amid the , highlighted by the collapse of Danatbank on July 13, which triggered widespread s across . The Darmstädter und Nationalbank (Danatbank), one of 's largest universal banks, suspended payments after revelations of substantial losses tied to failed investments and loans, leading to panic withdrawals and the temporary closure of stock exchanges and banking operations. This crisis exacerbated and economic contraction, contributing to political radicalization as support for extremist parties surged in subsequent elections. The , proposed by U.S. President in June and taking effect around mid-year, offered a one-year suspension of intergovernmental war debt and reparations payments to alleviate global financial strain, though its implementation faced delays and opposition, particularly from . In the United States, Municipal Stadium opened on July 1, providing a new venue for Major League Baseball's Indians and the NFL's Browns with a capacity of 78,189. Sports achievements marked the month, with German boxer retaining the heavyweight title on July 3 by technical knockout against American Young Stribling in a bout drawing over 75,000 spectators at the . At Wimbledon, Cilly Aussem of won the women's singles on July 3, defeating , while American Sidney Wood claimed the men's title on July 4 via due to his opponent's injury. The U.S. Open golf tournament concluded on July 6 with Billy Burke victorious after a 36-hole playoff against George Von Elm. Finnish runner set a world record in the two-mile event on July 24, clocking 8:59.6 in . French cyclist Antonin Magne secured the on July 26, marking his second victory in the grueling race. France also captured the , defeating 3-2 in the International Lawn Tennis Challenge final on the same day. On , at a convention in , the International Bible Students Association, led by , adopted the name to distinguish itself from other Bible Student groups and emphasize its identity based on :10. Other notable occurrences included the launch of the SS Mariposa on July 18, the first ship equipped with air conditioning, and a tragic fire in on that killed 48 people.

August

The escalation of the reached catastrophic levels in August, as heavy rains caused dikes along the Yangtze River to collapse on , submerging vast regions and contributing to an estimated 150,000 immediate drownings by early in the month. On , levees around Gaoyou burst, leading to the Yangtze's overflow and the deaths of between 10,000 and 15,000 people in a single surge, exacerbating , , and displacement across that ultimately claimed 1 to 4 million lives overall. These events, driven by and inadequate infrastructure, overwhelmed relief efforts and highlighted vulnerabilities in densely populated riverine areas. In , the German banking crisis intensified amid the , with runs on institutions continuing into August following the July collapse of Danatbank, prompting government-imposed bank holidays and capital controls to stem withdrawals and liquidity shortages. This turmoil, rooted in overleveraged loans and international strains, deepened —reaching 30% in urban areas—and fueled political extremism, as evidenced by rising Nazi support in subsequent elections. Concurrently, on August 29, and the initialed a draft non-aggression and neutrality pact, committing each to abstain from alliances or actions aiding an aggressor against the other, amid mutual concerns over regional instability. Elsewhere, on August 2, a referendum in Catalonia approved a draft statute granting regional autonomy within the newly established Spanish Second Republic, with 99.5% approval from 75% of eligible voters, reflecting strong separatist sentiments post-monarchy. This vote, held amid Spain's republican transition, paved the way for limited self-governance, though implementation faced centralist opposition. In the Soviet Union, collectivization advanced aggressively, with 58% of peasant holdings consolidated by August 1, enforcing grain requisitions that sparked rural resistance and contributed to widespread famine precursors.

September

On September 18, 1931, the occurred when Japanese officers detonated a small amount of on a section of the Japanese-owned near Mukden (modern ) in Chinese , creating minimal damage to the tracks. Japanese forces immediately blamed local Chinese dissidents and used the event as a to seize Mukden that night, initiating a broader invasion of despite orders from to limit actions to the railway zone. The staged explosion, later confirmed as a false-flag operation by Japanese military personnel including Lieutenant Kawamoto and Captain Nakamura under Colonel Itagaki's direction, bypassed civilian government oversight and escalated into the establishment of the puppet state of by 1932. Amid the deepening , Britain abandoned the gold standard on September 21, 1931, when the suspended convertibility of the into gold following severe speculative attacks on the currency and rapid depletion of gold reserves. This decision, prompted by financial strains including the collapse of the bank in earlier that year and subsequent European banking crises, devalued the pound by approximately 30% and triggered a wave of currency depreciations worldwide, exacerbating global economic instability. The move marked a significant policy shift, allowing monetary expansion but contributing to protectionist measures and trade barriers as nations sought to protect domestic economies.

October

On 1 October, the Spanish Cortes approved , granting voting rights to women aged 23 and older, making the first Spanish-speaking nation to extend unrestricted suffrage to women. That same day in , , riots erupted as approximately 50,000 unemployed workers protested cuts to ; clashes with police led to widespread looting of stores and the arrest of a Labour for inciting the crowd. On 10 October, Adolf Hitler met German President Paul von Hindenburg for the first time at the presidential palace in Berlin; Hindenburg, unimpressed by Hitler's demeanor and perceived lack of statesmanship, dismissed him abruptly, later describing the Nazi leader as unfit for high office. The Christ the Redeemer statue atop Corcovado Mountain in Rio de Janeiro, Brazil—a 30-meter-tall Art Deco reinforced concrete figure symbolizing Christianity—was inaugurated on 12 October following nearly a decade of construction funded by public donations. Chicago gangster Alphonse "Al" Capone was convicted on 17 October in federal court of five counts of income tax evasion and two counts of failing to file tax returns, for which he had underreported income from illegal activities including bootlegging and gambling; the verdict marked the culmination of a U.S. government strategy to prosecute him on financial charges after failed attempts on murder and Prohibition violations. American inventor Thomas Alva Edison, holder of over 1,000 patents including the practical and , died on 18 October at his , home at age 84 from complications of diabetes. On 24 October, Capone was sentenced by Judge James Herbert Wilkerson to 11 years in federal prison, a $50,000 fine, and court costs of $7,692, effectively dismantling his criminal empire; he served time at Atlanta Penitentiary before transfer to Alcatraz. Earlier that day, New York Governor dedicated the spanning the between and —completed eight months ahead of schedule at a cost of $17 million—praising its engineering as a symbol of American progress amid the .

November

On November 3, the Company announced the successful development of (initially called Duprene), the first with properties comparable to , marking a breakthrough in derived from . This innovation, led by chemist and team, addressed vulnerabilities in natural rubber supply chains amid global economic pressures. On November 7, and communist forces proclaimed the in , Province, establishing a with Mao as chairman, modeled on Soviet structures and claiming authority over communist-held territories. The declaration, timed to coincide with the anniversary of the Russian , adopted a emphasizing land redistribution and , though its control remained limited to rural bases amid Nationalist encirclement. In the Hessian state election on November 15, the (NSDAP) secured a significant victory, increasing its seats in the from 7 to 26 and capturing approximately 38% of the vote, reflecting growing discontent with the government's austerity measures during the . This outcome alarmed observers, as it demonstrated the party's appeal in rural and Protestant areas, foreshadowing further electoral gains. An explosion at Bentley Colliery in Doncaster, Yorkshire, on November 20 killed 45 miners due to firedamp ignition in the Barnsley Seam, one of the deadliest mining disasters in British history at the time. Rescue efforts recovered 40 bodies, with five remaining entombed; official inquiries attributed the blast to inadequate ventilation and safety lamp failures in a gob fire-prone area. On November 26 (Thanksgiving Day), chemist at identified definitive spectroscopic evidence for a heavy of (mass-2), later named , through and analysis of samples. This discovery, confirmed via band spectrum shifts, laid groundwork for techniques and earned Urey the 1934 .

December

On December 1, the Ottawa branch of the British commenced operations independently as the Royal Canadian Mint, marking Canada's assumption of full control over its coinage production amid growing autonomy. Earlier that day, the implemented a policy shifting to a six-day work week with one rest day every six days, aiming to boost industrial productivity during the first Five-Year Plan by staggering worker days off to maintain continuous factory operations. On December 3, , an effervescent antacid tablet combining aspirin, , and , was introduced to the U.S. market by as a remedy for and headaches. In sports, the Canadian Football League's Grey Cup final occurred on December 5 at Molson Stadium in , where the Montreal AAA Winged Wheelers defeated the Balmy Beach Beachers 22–0 before 6,000 spectators, securing the Winged Wheelers' first championship in the event's 19th edition. On December 9, Spain's Constituent Cortes ratified the Constitution of 1931, which enshrined , , , and a , solidifying the Second Spanish Republic established after King Alfonso XIII's earlier that year; the document's leftist provisions, including Catalan autonomy and subordination to rule, fueled ongoing polarization between republicans and monarchists. The Nobel Prizes were awarded on December 10: received the Literature prize posthumously for his lyrical poetry rooted in Swedish rural life, while and shared the Peace Prize— for her internationalist and social reform work, Butler for promoting arbitration and the League of Nations—amid global economic turmoil that tested such ideals. December 11 saw the Statute of Westminster receive royal assent from King George V, granting legislative independence to the British dominions of , , , Newfoundland, , and the by removing the British Parliament's override authority, effectively recognizing their equal sovereign status within the . Facing severe deflation and banking crises during the Great Depression, Japan abandoned the gold standard on December 13, allowing the yen to depreciate sharply, which facilitated export recovery but intensified militarist pressures for expansionist policies in Asia. In Australia, cricketer Don Bradman scored 219 runs for New South Wales against South Australia on December 18–19 in Sydney, extending his dominant form in a Sheffield Shield match and underscoring his statistical superiority in Test cricket averages exceeding 100. On December 28, Italian Prime Minister Benito Mussolini's government enacted a law mandating oaths of allegiance to the fascist regime from all university professors and schoolteachers, with over 90% compliance but notable refusals leading to dismissals, consolidating ideological control over education. That same day, Mahatma Gandhi arrived in Bombay after attending the second Round Table Conference in London, where his advocacy for dominion status and opposition to separate electorates for untouchables yielded limited concessions, prompting renewed non-cooperation campaigns against British rule upon his return.

Deaths

January

On January 1, the University of Alabama defeated Washington State University 24–0 in the 17th Rose Bowl Game, held at the Rose Bowl Stadium in Pasadena, California, before a crowd of approximately 60,000 spectators. Alabama's offense overwhelmed Washington State's defense, which had allowed only 20 points to major opponents during the 1930 regular season. The reflected ongoing Depression-era volatility, with the closing at 169 on January 2, en route to a year-end low of 77.9. In , Representative introduced legislation authorizing immediate cash payments of veterans' bonuses, amid rising unemployment and veteran hardship; this measure foreshadowed larger debates and the 1932 march, though it did not pass at the time. On January 3, center Nels Stewart scored twice against the in 4 seconds—the fastest pair of goals in NHL history—assisted by Hooley Smith in a 2–0 victory. Stewart's tally came at 8:28 and 8:32 of the second period, a record matched only in 1995. Inventor Thomas Edison filed his final patent application on January 13 for a "holder for article to be electroplated," an apparatus to improve electroplating efficiency by securing objects during the process; Edison, aged 83, held over 1,000 U.S. patents lifetime. In Australia, Sir Isaac Alfred Isaacs was sworn in as Governor-General on January 22, becoming the first native-born Australian to hold the office despite initial opposition from King George V, who preferred British appointees; Isaacs, a former High Court Chief Justice, served until 1936. Charlie Chaplin's silent romantic comedy premiered on January 30 at the , featuring Chaplin as pursuing a blind flower girl amid economic disparity themes resonant with the era; the film, with synchronized music but no dialogue, drew acclaim for its blend of pathos and .

February

On , a magnitude 7.8 earthquake struck the region of at 10:47 a.m., with its epicenter 15 kilometers north of Napier. The quake, the deadliest in 's history, killed 256 people—161 in Napier, 93 in , and 2 in —while injuring hundreds and rendering thousands homeless. It devastated central Napier and , leveling unreinforced masonry , igniting fires from ruptured gas lines, and causing landslides that blocked roads; the ensuing reconstruction transformed Napier into an architectural hub. On February 5, British racing driver set a new world land speed record of 245.733 mph (395.37 km/h) at , using his Blue Bird vehicle equipped with a aero engine. This marked his second record-breaking run at the site, surpassing the previous mark by over 14 mph and earning him a knighthood for his achievements in speed. In the United States, amid deepening hardships, food riots erupted in cities including and St. Paul, where crowds stormed grocery stores to seize provisions amid widespread and . On February 13, Viceroy Lord Irwin inaugurated as India's capital, fulfilling plans announced in to shift from Calcutta; the ceremony highlighted the completion of ' and Herbert Baker's neoclassical designs after two decades of construction. The horror film , directed by and starring as the vampire count, premiered in on February 12 before wider U.S. release on February 14, adapting Bram Stoker's novel and launching Universal's monster movie era.

March

On March 3, 1931, the passed a designating "" as the national anthem, with President signing it into law the same day. The resolution formalized the song, originally written by in 1814, amid growing popularity during and subsequent naval traditions. On March 5, 1931, and Viceroy Lord Irwin signed the Gandhi-Irwin Pact in , temporarily suspending the Indian National Congress's campaign in exchange for the release of political prisoners and concessions on salt production. The agreement aimed to facilitate Gandhi's participation in the upcoming Second Round Table Conference in London, though it drew criticism from more radical nationalists for compromising on full independence demands. Bhagat Singh, Sukhdev Thapar, and Shivaram Rajguru—Indian revolutionaries convicted for the 1928 Lahore Conspiracy Case bombing and the killing of a British police officer—were executed by on March 23, 1931, in Central Jail, two days before their original sentence date, amid protests over procedural haste. Their deaths galvanized anti-colonial sentiment, with widespread mourning and strikes across , including hartals that escalated tensions. Communal riots erupted in on March 25, 1931, triggered by Hindu-Muslim clashes during mourning processions for , resulting in over 300 deaths and widespread property damage in one of the most severe outbreaks of intercommunal violence in British India up to that point. British authorities deployed troops to restore order, while the riots highlighted deepening sectarian divides amid the independence movement. On March 19, 1931, Nevada's state legislature legalized most forms of casino through Assembly Bill 98, signed by Governor Fred B. Balzar, as a revenue measure to combat economic decline during the . The law permitted licensed operations, leading to immediate casino openings in Reno and laying the foundation for Las Vegas's later growth as a hub. On March 31, 1931, Notre Dame football coach , along with seven others, died in a Fokker F-10 plane crash near Bazaar, Kansas, operated by Transcontinental & Western Air, due to structural failure in the wooden wings exacerbated by moisture and design flaws. , renowned for innovating forward passes and achieving a 105-12-5 record, was en route to Hollywood for a role; the tragedy prompted U.S. reforms, including scrutiny of wood-framed aircraft.

April

On April 1, 1931, a magnitude 5.6 struck , the capital of , devastating the city and triggering fires that destroyed much of its infrastructure. The disaster killed approximately 2,500 people and left tens of thousands homeless, exacerbating Nicaragua's political instability amid U.S. occupation forces' presence. U.S. President promptly sent a message of sympathy to Nicaraguan President José María Moncada, highlighting international concern over the event's humanitarian toll. On April 2, 1931, during an game in , between the local team and the New York Yankees, 17-year-old pitcher struck out and in succession. Mitchell, signed by the Lookouts as a amid the Great Depression's economic pressures on sports, faced the Yankees' "" after the starting pitcher faltered, walking before being removed. The feat, witnessed by about 4,000 spectators, challenged gender norms in , though Commissioner later voided her contract, citing the sport's unsuitability for women. From April 6 to 9, 1931, in , the first trials of the ""—nine Black teenagers aged 13 to 19 accused of raping two white women on a —resulted in swift convictions for eight defendants, all sentenced to death by an all-white . The arrests had occurred on March 25 following a fight on the train, but the trials, conducted amid mob threats and inadequate defense (one lawyer for all, with no time for preparation), exemplified Southern racial biases and failures during the Jim Crow era. The case drew national scrutiny, with the ACLU and International Labor Defense intervening on appeal, highlighting coerced testimonies from accusers and Ruby Bates. Subsequent U.S. rulings in 1932 and 1935 overturned convictions on grounds of mob influence and exclusion of Blacks, marking precedents for fair trials. On April 14, 1931, following municipal elections that favored republican candidates, the Second Spanish Republic was proclaimed in , ending the Bourbon monarchy after King Alfonso XIII's regime faltered amid economic woes and Primo de Rivera's dictatorship. The king, facing pressure from military and civilian unrest, departed for exile the next day without formal abdication, allowing a provisional government under to enact reforms like land redistribution and secular education. This shift toward democracy initially garnered support across ideological lines but sowed divisions that contributed to the by 1936.

May


On May 1, 1931, the Empire State Building was officially dedicated in New York City after 410 days of construction, standing at 1,454 feet (443 meters) tall and surpassing the Chrysler Building as the world's tallest structure. The project, led by architects Shreve, Lamb & Harmon and financed by John J. Raskob and Pierre S. du Pont, employed thousands during the early Great Depression but resulted in high vacancy rates due to economic stagnation, with the building earning the nickname "Empty State Building" in its initial years.
On May 11, 's largest bank, Österreichische Credit-Anstalt für Handel und Gewerbe, revealed losses exceeding half its capital from bad loans tied to Central European economic weaknesses, prompting government intervention and the first major banking collapse of the European phase of the . This event triggered deposit runs across , , and beyond, exacerbating shortages and contributing to widespread bank failures that deepened global deflationary pressures. On May 27, Belgian physicist and assistant Paul Kipfer ascended in a pressurized aluminum gondola attached to a hydrogen balloon from , Germany, reaching an altitude of 15,781 meters (51,775 feet) and becoming the first humans to enter the , where they conducted measurements of cosmic radiation. The flight, lasting about eight hours before a safe landing in , demonstrated the feasibility of high-altitude manned and advanced understanding of atmospheric layers.

June

On June 5, federal authorities indicted mobster Alphonse "Al" on 22 counts of evasion covering the years 1925 through 1929, marking a pivotal legal action against during . , previously untouchable for bootlegging and violence, faced charges for failing to report over $1 million in income, leading to his release on $50,000 bail pending trial. This prosecution, driven by the U.S. under pressure from federal prosecutors, exemplified the government's strategy of using tax laws to dismantle criminal enterprises lacking direct evidence of underlying felonies. On June 9, American physicist received U.S. 1,809,271 for a system of "propulsion of aircraft" utilizing engines to generate via high-velocity gas blasts, advancing early concepts in jet and . The design incorporated or solid propellants to power aircraft independently of atmospheric air, addressing limitations of propeller-driven flight at high altitudes or speeds, though practical implementation remained decades away due to technological constraints. Goddard's work, funded partly by the Guggenheim Foundation, laid foundational principles for later developments, prioritizing verifiable engineering over speculative claims. Amid escalating global economic distress from the , U.S. President proposed on June 20 a one-year moratorium on intergovernmental war debt and reparations payments, aiming to alleviate financial strains on debtor nations like and Britain. The initiative suspended approximately $3.25 billion in Allied repayments to the U.S. while conditioning German reparations relief on equivalent concessions, reflecting Hoover's causal view that liquidity shortages, not structural flaws, drove the crisis. Endorsed by 15 nations by July, the moratorium provided temporary relief but failed to halt deepening deflationary spirals, as evidenced by subsequent banking collapses in . On June 23, American aviators Wiley Post and Harold Gatty departed Roosevelt Field, New York, in a aircraft, initiating the first successful circumnavigation of the globe by a fixed-wing plane in under eight days, covering 15,474 miles eastward via , , and . This feat demonstrated advancements in long-range navigation and fuel efficiency amid Depression-era innovation, though it relied on established autogiro and radio aids rather than novel propulsion.

July

In July 1931, grappled with intensifying financial instability amid the , highlighted by the collapse of Danatbank on July 13, which triggered widespread bank runs across . The Darmstädter und Nationalbank (Danatbank), one of 's largest universal banks, suspended payments after revelations of substantial losses tied to failed investments and loans, leading to panic withdrawals and the temporary closure of stock exchanges and banking operations. This crisis exacerbated and economic contraction, contributing to political radicalization as support for extremist parties surged in subsequent elections. The , proposed by U.S. President in June and taking effect around mid-year, offered a one-year suspension of intergovernmental war debt and reparations payments to alleviate global financial strain, though its implementation faced delays and opposition, particularly from . In the United States, Municipal Stadium opened on July 1, providing a new venue for Major League Baseball's Indians and the NFL's Browns with a capacity of 78,189. Sports achievements marked the month, with German boxer retaining the heavyweight title on July 3 by technical knockout against American Young Stribling in a bout drawing over 75,000 spectators at the . At Wimbledon, Cilly Aussem of won the women's singles on July 3, defeating , while American Sidney Wood claimed the men's title on July 4 via due to his opponent's injury. The U.S. Open golf tournament concluded on July 6 with Billy Burke victorious after a 36-hole playoff against George Von Elm. Finnish runner set a world record in the two-mile event on July 24, clocking 8:59.6 in . French cyclist Antonin Magne secured the on July 26, marking his second victory in the grueling race. France also captured the , defeating 3-2 in the International Lawn Tennis Challenge final on the same day. On , at a convention in , the International Bible Students Association, led by , adopted the name to distinguish itself from other Bible Student groups and emphasize its identity based on :10. Other notable occurrences included the launch of the SS Mariposa on July 18, the first ship equipped with air conditioning, and a tragic fire in on that killed 48 people.

August

The escalation of the reached catastrophic levels in August, as heavy rains caused dikes along the Yangtze River to collapse on , submerging vast regions and contributing to an estimated 150,000 immediate drownings by early in the month. On , levees around Gaoyou burst, leading to the Yangtze's overflow and the deaths of between 10,000 and 15,000 people in a single surge, exacerbating , , and displacement across that ultimately claimed 1 to 4 million lives overall. These events, driven by and inadequate infrastructure, overwhelmed relief efforts and highlighted vulnerabilities in densely populated riverine areas. In , the German banking crisis intensified amid the , with runs on institutions continuing into August following the July collapse of Danatbank, prompting government-imposed bank holidays and capital controls to stem withdrawals and liquidity shortages. This turmoil, rooted in overleveraged loans and international strains, deepened —reaching 30% in urban areas—and fueled political extremism, as evidenced by rising Nazi support in subsequent elections. Concurrently, on August 29, and the initialed a draft non-aggression and neutrality pact, committing each to abstain from alliances or actions aiding an aggressor against the other, amid mutual concerns over regional instability. Elsewhere, on August 2, a referendum in Catalonia approved a draft statute granting regional autonomy within the newly established Spanish Second Republic, with 99.5% approval from 75% of eligible voters, reflecting strong separatist sentiments post-monarchy. This vote, held amid Spain's republican transition, paved the way for limited self-governance, though implementation faced centralist opposition. In the Soviet Union, collectivization advanced aggressively, with 58% of peasant holdings consolidated by August 1, enforcing grain requisitions that sparked rural resistance and contributed to widespread famine precursors.

September

On September 18, 1931, the Mukden Incident occurred when Japanese Kwantung Army officers detonated a small amount of dynamite on a section of the Japanese-owned South Manchuria Railway near Mukden (modern Shenyang) in Chinese Manchuria, creating minimal damage to the tracks. Japanese forces immediately blamed local Chinese dissidents and used the event as a pretext to seize Mukden that night, initiating a broader invasion of Manchuria despite orders from Tokyo to limit actions to the railway zone. The staged explosion, later confirmed as a false-flag operation by Japanese military personnel including Lieutenant Kawamoto and Captain Nakamura under Colonel Itagaki's direction, bypassed civilian government oversight and escalated into the establishment of the puppet state of Manchukuo by 1932. Amid the deepening , Britain abandoned the gold standard on September 21, 1931, when the suspended convertibility of the into gold following severe speculative attacks on the currency and rapid depletion of gold reserves. This decision, prompted by financial strains including the collapse of the bank in earlier that year and subsequent European banking crises, devalued the pound by approximately 30% and triggered a wave of currency depreciations worldwide, exacerbating global economic instability. The move marked a significant policy shift, allowing monetary expansion but contributing to protectionist measures and trade barriers as nations sought to protect domestic economies.

October

On 1 October, the Spanish Cortes approved , granting voting rights to women aged 23 and older, making the first Spanish-speaking nation to extend unrestricted suffrage to women. That same day in , , riots erupted as approximately 50,000 unemployed workers protested cuts to ; clashes with police led to widespread looting of stores and the arrest of a Labour for inciting the crowd. On 10 October, Adolf Hitler met German President Paul von Hindenburg for the first time at the presidential palace in Berlin; Hindenburg, unimpressed by Hitler's demeanor and perceived lack of statesmanship, dismissed him abruptly, later describing the Nazi leader as unfit for high office. The Christ the Redeemer statue atop Corcovado Mountain in Rio de Janeiro, Brazil—a 30-meter-tall Art Deco reinforced concrete figure symbolizing Christianity—was inaugurated on 12 October following nearly a decade of construction funded by public donations. Chicago gangster Alphonse "Al" Capone was convicted on 17 October in federal court of five counts of evasion and two counts of failing to file tax returns, for which he had underreported income from illegal activities including bootlegging and gambling; the verdict marked the culmination of a U.S. government strategy to prosecute him on financial charges after failed attempts on murder and violations. American inventor Thomas Alva Edison, holder of over 1,000 patents including the practical and , died on 18 October at his , home at age 84 from complications of diabetes. On 24 October, Capone was sentenced by Judge James Herbert Wilkerson to 11 years in federal prison, a $50,000 fine, and court costs of $7,692, effectively dismantling his criminal empire; he served time at Atlanta Penitentiary before transfer to Alcatraz. Earlier that day, New York Governor dedicated the spanning the between and —completed eight months ahead of schedule at a cost of $17 million—praising its engineering as a symbol of American progress amid the .

November

On November 3, the Company announced the successful development of (initially called Duprene), the first with properties comparable to , marking a breakthrough in derived from . This innovation, led by chemist and team, addressed vulnerabilities in natural rubber supply chains amid global economic pressures. On November 7, and communist forces proclaimed the in , Province, establishing a with Mao as chairman, modeled on Soviet structures and claiming authority over communist-held territories. The declaration, timed to coincide with the anniversary of the Russian , adopted a emphasizing land redistribution and , though its control remained limited to rural bases amid Nationalist encirclement. In the Hessian state election on November 15, the (NSDAP) secured a significant victory, increasing its seats in the from 7 to 26 and capturing approximately 38% of the vote, reflecting growing discontent with the government's austerity measures during the . This outcome alarmed observers, as it demonstrated the party's appeal in rural and Protestant areas, foreshadowing further electoral gains. An explosion at Bentley Colliery in Doncaster, Yorkshire, on November 20 killed 45 miners due to firedamp ignition in the Barnsley Seam, one of the deadliest mining disasters in British history at the time. Rescue efforts recovered 40 bodies, with five remaining entombed; official inquiries attributed the blast to inadequate ventilation and safety lamp failures in a gob fire-prone area. On November 26 (Thanksgiving Day), chemist at identified definitive spectroscopic evidence for a heavy of (mass-2), later named , through and analysis of samples. This discovery, confirmed via band spectrum shifts, laid groundwork for techniques and earned Urey the 1934 .

December

On December 1, the Ottawa branch of the British commenced operations independently as the Royal Canadian Mint, marking Canada's assumption of full control over its coinage production amid growing autonomy. Earlier that day, the implemented a policy shifting to a six-day work week with one rest day every six days, aiming to boost industrial productivity during the first Five-Year Plan by staggering worker days off to maintain continuous factory operations. On December 3, , an effervescent antacid tablet combining aspirin, , and , was introduced to the U.S. market by as a remedy for and headaches. In sports, the Canadian Football League's final occurred on December 5 at Molson Stadium in , where the Montreal AAA Winged Wheelers defeated the Toronto Balmy Beach Beachers 22–0 before 6,000 spectators, securing the Winged Wheelers' first championship in the event's 19th edition. On December 9, Spain's Constituent Cortes ratified the Constitution of 1931, which enshrined , , , and a , solidifying the Second Spanish Republic established after King Alfonso XIII's earlier that year; the document's leftist provisions, including Catalan autonomy and subordination to rule, fueled ongoing polarization between republicans and monarchists. The Nobel Prizes were awarded on December 10: received the Literature prize posthumously for his lyrical poetry rooted in Swedish rural life, while and shared the Peace Prize—Addams for her internationalist and social reform work, Butler for promoting arbitration and the League of Nations—amid global economic turmoil that tested such ideals. December 11 saw the Statute of Westminster receive royal assent from King George V, granting legislative independence to the British dominions of , , , Newfoundland, , and the by removing the British Parliament's override authority, effectively recognizing their equal sovereign status within the . Facing severe deflation and banking crises during the , abandoned the gold standard on December 13, allowing the yen to depreciate sharply, which facilitated export recovery but intensified militarist pressures for expansionist policies in . In , cricketer scored 219 runs for against on December 18–19 in , extending his dominant form in a match and underscoring his statistical superiority in averages exceeding 100. On December 28, Italian Prime Minister Benito Mussolini's government enacted a law mandating oaths of allegiance to the fascist regime from all university professors and schoolteachers, with over 90% compliance but notable refusals leading to dismissals, consolidating ideological control over education. That same day, arrived in Bombay after attending the second Round Table Conference in , where his advocacy for dominion status and opposition to separate electorates for untouchables yielded limited concessions, prompting renewed non-cooperation campaigns against British rule upon his return.

Nobel Prizes

Physics

No Nobel Prize in Physics was awarded in 1931. The prize money was instead allocated to the Special Fund of the prize section, as determined by the Nobel Committee for Physics. This decision aligned with the Nobel Foundation's statutes permitting the withholding of a prize when no sufficiently qualified candidate or discovery was identified among nominations. Nominations submitted that year included prominent physicists such as Erwin Schrödinger and Werner Heisenberg for their foundational contributions to quantum mechanics, as endorsed by Albert Einstein in a letter dated September 30, 1931. However, these works—Schrödinger's wave mechanics from 1926 and Heisenberg's matrix mechanics from 1925—were later recognized with awards in 1933 and 1932, respectively, indicating the committee's emphasis on recency and verification criteria. The non-award in 1931 was one of several instances, including 1916 and 1934, where the committee found no work meeting the required standards.

Chemistry

The Nobel Prize in Chemistry for 1931 was awarded jointly to Carl Bosch and Friedrich Bergius "in recognition of their contributions to the invention and development of chemical high pressure methods." Bosch, born on August 27, 1874, in Cologne, Germany, and Bergius, born on October 11, 1884, in Goldschmieden near Breslau (now Wrocław, Poland), advanced industrial chemistry by enabling large-scale reactions under extreme pressures, which transformed processes previously confined to laboratory scales. Their work addressed critical needs in agriculture, energy, and wartime production, with Bosch focusing on nitrogen fixation and Bergius on hydrogenation of heavy hydrocarbons. Bosch's primary contribution involved industrializing the Haber-Bosch process, originally developed by Fritz Haber for ammonia synthesis from nitrogen and hydrogen gases at high temperatures (around 200–300°C) and pressures (150–250 atmospheres), using iron-based catalysts. Starting in 1910 at BASF, Bosch overcame engineering challenges such as material corrosion and heat management to build the first commercial plant in Oppau, Germany, operational by 1913, producing 30 tons of ammonia daily, which scaled to 100 tons by 1917 at Leuna amid World War I demands for explosives. This process revolutionized fertilizer production, enabling higher crop yields and averting predicted global famines by synthesizing over 100 million tons of ammonia annually by later decades, though its dual-use for munitions drew ethical scrutiny. Bergius pioneered high-pressure hydrogenation techniques, developing a process in 1913–1914 to convert lignite (brown coal) into liquid fuels by reacting it with under 200–250 atmospheres and 450–500°C with catalysts like , yielding and diesel equivalents. Patented in 1913 and demonstrated at a in Rheinau, , by 1920, this provided a pathway for from abundant reserves, particularly vital for energy-scarce nations; it influenced later Nazi-era production but faced economic hurdles due to high costs and complexity until wartime necessities. Both laureates delivered lectures in on May 21, 1932, with Bosch detailing ammonia industry evolution and Bergius emphasizing practical high-pressure applications.

Physiology or Medicine

The Nobel Prize in Physiology or Medicine for 1931 was awarded to , a German and physiologist, for his discovery of the nature and mode of action of the respiratory enzyme. This work elucidated the enzymatic processes enabling , particularly the role of iron-containing enzymes in oxygen activation and transfer during biological oxidation. Warburg's research, conducted primarily at the Kaiser Wilhelm Institute for Biology in , demonstrated that the respiratory enzyme—later identified as involving iron porphyrins such as —catalyzes the reduction of oxygen to water, a fundamental step in aerobic metabolism. His findings provided quantitative insights into respiration rates, showing that the enzyme's activity directly correlates with oxygen consumption in living cells, measured via manometric techniques he refined. Warburg's breakthrough built on earlier studies of and oxidation but shifted focus to the precise chemical identity and kinetics of the respiratory catalyst. By isolating and characterizing the 's , he established that it functions as an oxygen-transferring agent, independent of light or other external factors, challenging prevailing theories of respiration as a simple . This discovery not only clarified normal cellular energy production but also laid groundwork for understanding metabolic deviations, such as the elevated in tumor cells observed in his concurrent . The recognized the work's implications for , noting it opened new avenues in studying mechanisms and metabolic pathways. In the year of the award, assumed directorship of the newly established Kaiser Wilhelm Institute for Cell Physiology, where he continued experimental refinements using optical and manometric methods to quantify . The prize, valued at approximately 175,000 Swedish kronor at the time, was presented in on , 1931, with delivering a on "The Oxygen-Transferring of Respiration." His sole receipt of the prize underscored the singular impact of his contributions, though he received 47 nominations for subsequent awards, reflecting ongoing influence. 's approach emphasized empirical measurement over speculative models, prioritizing verifiable data from isolated systems to derive causal mechanisms of respiration.

Literature

The Nobel Prize in Literature in 1931 was awarded posthumously to Swedish poet (1864–1931) "for the poetry of Erik Axel Karlfeldt." Karlfeldt, who served as permanent secretary of the from 1913 until his death on April 8, 1931, had previously declined the prize when offered in 1919, citing his administrative role in the institution responsible for nominations and selections. This posthumous honor, announced after his passing from illness, marked the only such award in the history of the Literature category, as subsequent statutes from 1974 explicitly prohibited prizes to deceased recipients. Karlfeldt's oeuvre, rooted in rural traditions where he was born on July 20, 1864, blended regional lyricism with symbolist undertones, evoking nostalgia for agrarian life amid encroaching industrialization. His debut collection, Vildmarks- och kärleksvisor (Wilderness and Love Songs), appeared in , followed by works like Flora och Pomona (1906), which interwove motifs with and mythic themes, earning acclaim for rhythmic mastery and vivid . The Academy's decision emphasized his contributions to Swedish national , praising its "luminosity, strength and genuine inspiration," though his tenure as secretary raised questions of institutional self-preference in selecting a compatriot over international candidates. The award speech highlighted Karlfeldt's fidelity to folk roots and poetic integrity, positioning the prize as a corrective for his earlier demurral and overlooked genius. While domestically revered for preserving through verse that masked deeper symbolic explorations of human frailty and landscape, the choice drew limited external scrutiny at the time, reflecting the prize's early Eurocentric tendencies favoring established national figures.

Peace

The Nobel Peace Prize for 1931 was jointly awarded to (1860–1935), an American social reformer, settlement house founder, and pacifist leader, and (1862–1947), an American educator, university president, and advocate for , "for their assiduous effort to revive the ideal of peace." The decision by the highlighted Addams's role in fostering disarmament negotiations among major powers and her organizational work in the global , alongside Butler's promotion of treaties outlawing aggressive war and bolstering judicial mechanisms for dispute resolution. The award ceremony occurred on 10 December 1931 in , , amid growing European economic instability and disarmament debates following . Addams, born on 6 September 1860 in Cedarville, , co-founded in in 1889 as a center for , , and immigrant assimilation, which informed her broader commitment to humanitarian causes. She served as president of the Women's International League for Peace and Freedom from its founding in , organizing international conferences to advocate for arbitration over armament and criticizing as a driver of social ills. Her drew controversy during for opposing U.S. entry and engaging in relief efforts perceived by critics as sympathetic to , though she consistently prioritized non-violent resolution of conflicts rooted in and . Hospitalized in with health complications on the day of the ceremony, Addams received the news remotely and shared the prize's monetary value of 172,310 Swedish kronor equally with ; she died on 21 May 1935 in . Butler, who led as president from 1902 to 1945, earned recognition for championing the 1928 , ratified by over 60 nations to renounce war as a policy tool, and for supporting the League of Nations' established in 1922 at . His diplomatic efforts included advising U.S. presidents on and authoring works like The International Mind (1913), arguing that education and legal frameworks could supplant power politics with cooperative governance. Butler attended the Oslo presentation, where the Committee's speech praised his "constant and untiring work" for outlawing war, and followed with a radio address on 12 1931 emphasizing enforceable over utopian ideals. The shared prize underscored the Committee's view of complementary approaches: Addams's grassroots and Butler's institutional as dual pillars against resurgent in the .
Previous yearNext year

References

Add your contribution
Related Hubs
Contribute something
User Avatar
No comments yet.