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Bulgar calendar
Bulgar calendar
Bulgar calendar
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The Bulgarian calendar was a solar calendar system used by the Bulgarians, who from the 4th century onwards dwelt in the Eurasian steppes north of the Caucasus and around the banks of river Volga. In 681, part of the Bulgarians settled in the Balkan peninsula and established First Bulgarian Empire. The main source of information used for reconstruction of the Bulgarian calendar is a short 15th century transcript in Church Slavonic called Nominalia of the Bulgarian Khans,[1] which contains 10 pairs of calendar terms. Additionally, the same dating system is used in a marginal note in a manuscript by 10th century monk Tudor Doksov and in the Chatalar Inscription by the 9th-century Bulgaria ruler Omurtag (r. 814–831), who also provides the Byzantine imperial dating equivalent (the indiction). According to the reconstructed calendar, the Bulgars used a 12-year cyclic calendar similar to the one adopted by Turkic peoples from the Chinese calendar, with names and numbers that are deciphered as in Bulgar language.[2] The reading, along with the "cyclic calendar" interpretation itself, was originally proposed by Finnish Slavist Jooseppi Julius Mikkola in 1913. Later, there have been various modifications and elaborations during the 20th century by scholars such as Géza Fehér, Omeljan Pritsak, Mosko Moskov and other scientists.[3]

Reconstructions vary slightly because some of the names are unattested, and the exact form of a few is debatable. The following list is based on Mosko Moskov's and description of the average mainstream interpretation, as well as his own reconstruction, and takes into account the existing disagreements:[4]

Years:

Number Animal In Bulgar
1 Mouse Somor
2 Ox Shegor
3 Uncertain, probably Tiger / Wolf Ver?
4 Rabbit Dvan[sh]
5 Uncertain, probably Dragon Ver[eni]?
6 Snake Dilom
7 Horse Imen[shegor]?
8 Ram Teku[chitem]?
9 Unattested, probably Monkey —
10 Hen or Rooster Toh
11 Dog Eth
12 Boar Dohs

Comparison with Turkic calendars

[edit]

The following comparison table was made based on Omeljan Pritsak's analysis.[5]

Year Bulgar
Old Turkic
(7 – 8 century) 		Uighur
(13 – 17 century) 		Turkmen Bashkir Kazakh Khakaski Teleut
Mouse Somor,
(čomor) [6] 		küskü сычқан сысҡан тышқан кÿске қойон
„Rabbit“
Ox Shegor,
σιγορ [7] 		ud сығыр һыйыр
„крава“ 		сиыр інек улу
„Dragon“
Uncertain, probably Tiger / Wolf Ver/Vereni,
Vereni [8] 		bars (Turkic) bars (Turkic) барс,
пәләң (Turkic) 		барыс барыс тÿлгÿ
„Fox“ 		йылан
„Snake“
Rabbit Dvan
(davlan) [9] 		tabïšɣan tavïšɣan таушқан ҡуян қоян хозан ат
„Horse“
Dragon lüi/lü (Chinese) luu (Chinese) лу балық луу лув килескі
„Lizard“ 		қой
„Ram“
Snake Dilom
(čilom)[10] 		yïlan yïlan йылан илан жылан чылан мечин
„Monkey“
Horse Ima[11]
(Imen) 		yunt,
yund 		йылқы илҡы жылқы чылғы ит
„Dog“
Ram Teku,

Teke [12]

qony qoin қой ҡой қой хой қақай
„Boar“ (Mongolian)
Monkey bičin bičin биҗин мишин маймыл,
мешін 		кіжі
„Human/Man“ 		чычқан
„Mouse“
Rooster Toh (čux) [13] takïɣu takïɣu тауқ тауыҡ тауық таңах тақаа
„Rooster“ (Mongolian)
Dog Eth [14] it it ит эт ит турна
„Crane“ 		инек
„Cow“
Boar Dohs
(čočka) [15] 		laɣzïn (?) toŋuz тоңуз доңгыз қара кейік öскі
„Ram“ 		пар
„Tiger“

References and notes

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Bulgar calendar

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from Grokipedia
The Bulgar calendar, also known as the Proto-Bulgarian calendar, was a solar calendrical system employed by the , a nomadic Turkic people from who established the in the in the AD. It featured a distinctive 12-year cycle in which each year was named after an animal—such as Snake (Dilom), Bull (Shegor), or Dragon (Ver)—drawing from Central Asian traditions akin to those in Turkic and systems. Months within the year were numerically designated rather than named, ranging from Alem (1st month) to Altem (12th month), with the new year commencing the day after the winter solstice, around December 21 in the modern Gregorian reckoning. The calendar's structure is primarily attested through the Nominalia of the Bulgarian Khans, a short medieval in dating to the 9th–10th centuries, which lists the khans (rulers) of and early along with their reign lengths and ascension dates specified in the animal-year and month system. This document reveals at least 10 pairs of such calendrical terms, enabling reconstructions of reign timelines from as early as 165 AD for legendary figures like Avitohol, though historical accuracy for pre-7th-century entries remains debated among scholars. Additional evidence appears in archaeological inscriptions, such as those from , the capital of the , confirming the system's use in official chronology during the pagan era. Originating in the Pontic-Caspian steppes and , the Bulgar calendar reflected the ' Turkic heritage, with parallels to the 12-year cycles of the Göktürk Khaganate and possibly broader Indo-Iranian influences from regions like the Pamir or . Some analyses suggest it incorporated elements of a larger 60-year , modified for Bulgar needs, though the core remained the animal-based annual reckoning integrated with solar observations. The system facilitated administrative and ritual functions in Bulgar society until the empire's Christianization under Khan Boris I in 864–865 AD, after which the gradually supplanted it in official use. Despite its obsolescence, the calendar underscores the ' sophisticated astronomical knowledge and cultural ties to Eurasian nomadic traditions.

History

Origins and development

The Bulgar calendar originated among the Proto-Bulgarian tribes, a group of Central Asian nomads whose ethnogenesis is traced to the Eurasian steppes in the early first millennium AD, with possible roots in earlier Turkic or Iranic-speaking communities. Scholarly debate persists on their precise origins, with some evidence suggesting Turkic influences from Central Asia and others pointing to Ciscaucasian or broader Iranic connections based on linguistic, archaeological, and genetic data. These tribes, known for their pastoral economy and migrations, developed calendrical systems to align seasonal activities with natural cycles, drawing on shared traditions from the region that included cyclical year naming and astronomical tracking. Scholarly reconstructions, based on linguistic and historical analysis, suggest the calendar's emergence was influenced by interactions in the Pontic-Caspian area and Central Asia, where similar 12-year animal cycles appear in Turkic cultures. The development of the calendar was fundamentally tied to astronomical observations, particularly the solar solstices that marked the agricultural year and the approximate 12-year orbital period of , which provided the framework for the zodiacal animal cycle. Proto-Bulgarian astronomers, as inferred from later records, used these observations to establish a system that synchronized earthly time with celestial movements, emphasizing the as the new year's commencement. This integration of solar and planetary data distinguished the , making it a tool for both practical and purposes in nomadic . The system was solar in nature, ensuring alignment with seasonal drifts through its structure. Archaeological and epigraphic evidence for the calendar's early form comes primarily from 8th- and 9th-century inscriptions in the , such as the Chatalar inscription erected by Khan Omurtag around 822 AD, which denotes the year as "Sigor Elem" (year of the bull, first month) alongside Byzantine indictional dating. These artifacts reveal circular conceptual designs in calendrical notation, reflecting the zodiac's structure, and demonstrate the system's use in official contexts. Wooden calendars from later periods in the , dating to the 19th century, represent a folk tradition of notched sticks for marking Christian holidays, though they do not directly connect to Proto-Bulgarian calendrical practices. Over time, the system maintained its solar basis with the enduring 12-year animal cycles for long-term reckoning.

Historical use among the Bulgars

The played a central role in the khaganate during the 7th century, serving as a tool for recording khan reigns, coordinating nomadic migrations, conducting rituals, and aligning agricultural activities with solar cycles. Established under Khan Kubrat around 632 AD, the khaganate utilized the 12-year animal cycle to date significant events; for example, Kubrat's 60-year reign is documented as beginning in the 3rd year of the Bull cycle, reflecting its application in official chronology and seasonal planning. This system, based on observations of the sun and , ensured precise timing for pastoral movements across the Pontic steppes and communal ceremonies tied to the animal zodiac. During the subsequent migration to the in the late , led by Khan Asparukh, the calendar facilitated logistical coordination for the Bulgar tribes' relocation from the collapsing khaganate, with the pivotal year of settlement west of the marked as the Year of the Monkey around 672 AD. As the established the Bulgar state () amid Slavic populations, the calendar adapted by incorporating elements from local Slavic lunar traditions and the Byzantine Julian system, particularly for administrative records and interethnic festivals between the 7th and 9th centuries. The Nominalia of the Bulgarian Khans, a key 11th-century manuscript, exemplifies this evolution by employing the animal cycle to date rulers' tenures, blending Bulgar cyclical notation with linear Slavic influences. In the era of Khan Krum (r. 803–814), the calendar continued in use for state purposes, including the organization of military campaigns against , such as victories at (811) and Versinikia (813), which aligned with its solar precision for seasonal timing. Following the in 864 AD under Khan Boris I, the was officially adopted for ecclesiastical and state purposes, marking the decline of the Bulgar system as the primary temporal framework. However, vestiges of the animal cycle endured in folk traditions, such as rural rituals and seasonal observances that merged pagan zodiac symbolism with Christian holidays, preserving cultural continuity among the Bulgar-descended population.

Structure and mechanics

Year composition and leap rules

The Bulgar calendar was a solar system aligned with astronomical events, beginning the new year on the day after the winter solstice (around December 21 in the Gregorian calendar). Its basic structure is attested through limited references in the Nominalia of the Bulgarian Khans, which employs a 12-year cycle where each year is designated by an animal name, such as Dilom (Snake) or Shegor (Bull). This cycle shows parallels to Turkic and other Central Asian calendrical traditions. Details of day counts, leap rules, and intercalation are not directly preserved in primary sources. Modern reconstructions, such as those by Bulgarian scholars like Petar Dobrev and Yordan Vulev, propose a year of approximately 365 days with periodic adjustments to match the solar year, potentially incorporating longer cycles (e.g., 60-year periods) for alignment. However, these remain speculative and debated among historians, with no consensus on specifics like uncounted days or leap mechanisms.

Division into months and days

The year was divided into 12 numerically designated months, from Alem (1st month) to Altem (12th month), as evidenced in the Nominalia. No primary records specify the number of days per month or overall day structure. Reconstructions suggest a practical for administrative and ritual purposes, possibly influenced by solar observations, but evidence for weekly divisions or special intercalary days is lacking in surviving texts. Archaeological inscriptions from sites like provide additional context for the calendar's use but do not detail internal divisions. Scholarly analyses emphasize the system's role in tracking reigns and events rather than precise daily mechanics.

Names and symbolism

Animal zodiac cycle

The Bulgar calendar incorporated a 12-year animal zodiac cycle, a system inherited from Turkic shamanistic traditions and used to denote years within the broader chronological framework. This cycle assigned each year to one of twelve animals, serving as a mnemonic device for tracking time over extended periods. The animals were: (Syichgan), cow or (Ud), bars ( or ) (Bars), (Tavshan), dragon (Leu), snake (Elan), horse (Yund), sheep (Koy), monkey (or ) (Bichin), (Takyigu), (It), and (Tonuz). The cycle repeated every 12 years, aligning with observations of Jupiter's orbit and facilitating long-term planning in nomadic societies. It was employed for naming years in historical records, such as the , where rulers' accessions were dated by the corresponding animal; for fortune-telling through associated omens and personality traits; and for agricultural timing, as the animals symbolized seasonal productivity or challenges in herding and farming. Culturally, the animals held deep significance as tribal totems, reflecting clan identities and spiritual guardians in Proto-Bulgar shamanism; for instance, the snake was linked to the legendary khan Avitohol, embodying wisdom and renewal. Rituals included crafting amulets depicting the birth-year animal for protection against misfortune, with each symbol evoking myths of prosperity or peril tied to the natural world. In modern reconstructions of the calendar, scholars continue efforts to revive the system for cultural and astronomical study.

Constellations and cultural symbols

The Proto-Bulgarian calendar featured a circular design symbolizing the solar path, with 12 inner constellations named after animals arranged to mark the progression of months and seasons. These constellations served as key cultural symbols, depicted through runes and pictograms that encoded astronomical observations and mythological narratives. The symbols were integrated with Bulgar mythology, particularly the worship of Tangra, the supreme sky god, who was believed to govern celestial bodies and orchestrate seasonal changes through these animal representations. For instance, the constellations evoked the cyclical renewal of nature, linking heavenly patterns to earthly cycles of fertility and harvest in Tengrist cosmology. Archaeological artifacts from the 8th-9th centuries, such as the engraved bronze with runic notations, illustrate this system with circular engravings featuring animal figures.

Comparisons and influences

With Turkic calendars

The Bulgar calendar shares key structural elements with other ancient Turkic calendars, including those of the Uyghur and Göktürk peoples, notably a 12-year cyclic system based on animal zodiac signs. These features reflect a common heritage in calendrical systems influenced by Central Asian traditions, ultimately derived from Chinese models transmitted via Turkic groups. The Bulgar system borrowed foundational concepts from Central Asian Turkic , where celestial cycles symbolized cosmic order under , but was likely modified for the Pontic steppe's , emphasizing transitions suited to migration and . Historical of these connections appears in the from the Göktürk era, which preserve shared terminology for temporal divisions that parallel terms in the , underscoring a broader Turkic calendrical tradition. However, due to limited attestation, exact structural details remain debated among scholars.

With Julian and Gregorian calendars

The Bulgar calendar's structure incorporates a 12-year cycle associated with animal symbols, similar to systems that track longer-term astronomical patterns like Jupiter's approximate 12-year orbit, in contrast to the Julian calendar's focus on a solar year averaging 365.25 days through a every four years, without any zodiacal or cyclical year naming. The further refined the Julian by skipping leap years in certain centurial years to better approximate the length of 365.2422 days. The adoption of in 864 AD under Khan Boris I marked a pivotal shift in the , where the gradually supplanted the Bulgar system to align with Byzantine Christian practices, incorporating fixed dates for holidays like . This transition caused discrepancies in historical records, as events dated in the Bulgar calendar required conversion to Julian equivalents, complicating interpretations of inscriptions and chronicles from the 9th and 10th centuries. Conversions between the systems highlight their differing epochs and structures; the Bulgar dates in the Nominalia are typically aligned with the 7th–9th centuries AD based on historical correlations. Scholarly reconstructions of the full Bulgar system remain tentative due to sparse primary evidence.

Modern interpretations

Recognition and accuracy claims

In the 20th and 21st centuries, historians such as Peter Dobrev have undertaken reconstructions of the Bulgar calendar, drawing primarily from the Nominalia of the Bulgarian Khans and related inscriptions to decipher its structure and chronology. Dobrev's mathematical analysis aligns calendar terms with historical events recorded in Byzantine sources, such as the ascension of Khan Isperih in 680 AD and Khan Umor in 765 AD, demonstrating a 12-year cyclic system. Dobrev's work, however, remains controversial among scholars, particularly regarding the Turkic origins of the Bulgars and the antiquity of the calendar. Scholarly debates persist regarding the calendar's antiquity and authenticity, primarily due to the scarcity of primary sources beyond fragmented inscriptions and the Nominalia. While Dobrev and similar researchers affirm its pre-Christian Indo-Iranian roots dating to at least the 4th-5th centuries BC, others note the absence of a universally accepted interpretation, attributing potential overstatements of precision to interpretive challenges in non-Turkic linguistic contexts. These discussions highlight the reliance on indirect , such as comparative analysis with Central Asian cyclic systems, rather than direct artifacts.

Contemporary revivals and studies

In the late 20th and early 21st centuries, the Bulgar calendar has experienced revivals in , particularly through annual celebrations of the on December 22, which aligns with the and serves as the "uncounted" or zero day in the ancient system. These events, often tied to cultural festivals, emphasize the calendar's role in Proto-Bulgar heritage and have grown in popularity amid post-communist efforts to reclaim pre-Christian traditions. Digital tools have facilitated contemporary engagement with the calendar, including websites like bgkalendar.com, which provides interactive conversions between Gregorian and ancient Bulgarian dates. This platform, based on reconstructions from historical artifacts and , supports educational and applications, such as displaying current dates in the Bulgar system (e.g., Year 7530 as of ). Archaeological research continues to uncover and analyze artifacts potentially linked to the calendar, notably the Bronze Rosette discovered during 1961 excavations at , the first Bulgarian capital. Measuring about 6 cm in diameter, this seven-pointed bronze medallion bears Proto-Bulgar inscriptions and has been interpreted by some scholars as representing elements of the 12-year cyclical structure. Comparative linguistic studies further advance understanding of the calendar's origins, drawing parallels between its month names (e.g., VECHEM and CHITEM) and Turkic prototypes like JUCHINCHI and ETINCHI, as detailed in analyses of Oghur Turkic influences on Proto-Bulgar terminology. Historian Peter Dobrev's reconstruction highlights these connections, positioning the calendar as a solar adaptation influenced by Central Asian Turkic traditions. Global interest in the Bulgar calendar persists through cultural recognition and discussions on its preservation as intangible heritage.

References

  1. http://www.kroraina.com/bulgar/rashev.html
  2. http://s155239215.onlinehome.us/turkic/25Bulgars/BulgarianKhansListEn.htm
  3. https://tomispev.tripod.com/proto_bulgar_calendar.htm
  4. https://bibliophilia.eu/purvobulgarskiat-kalendar
  5. https://www.researchgate.net/publication/347919868_Genealogy_as_a_Method_to_Legitimise_Rulership_in_Some_Balkan_and_Scandinavian_Sources
  6. https://www.academia.edu/50741981/The_debate_about_the_origin_of_Protobulgarians_in_the_beginning_of_the_21st_century
  7. https://www.academia.edu/43735252/Archaeological_and_genetic_data_suggest_Ciscaucasian_origin_for_the_Proto_Bulgarians
  8. https://bnr.bg/en/post/100100137/the-ancient-calendar-of-the-bulgarians
  9. https://www.researchgate.net/publication/43337052_Bulgarian_Wooden_Calendars
  10. https://www.scribd.com/document/704856973/Bulgar-calendar
  11. https://groznijat.tripod.com/pb_lang/pbl_3_1.html
  12. https://www.researchgate.net/publication/345394530_Monarchs%27_Names_and_Numbering_in_the_Second_Bulgarian_State
  13. https://www.familysearch.org/en/wiki/Bulgaria_Dates_and_Calendars
  14. https://nikolina4illyricum.wordpress.com/2010/02/
  15. https://pdfs.semanticscholar.org/103d/24846c8dde7e01f26ec94764e553dcb1142a.pdf
  16. https://3seaseurope.com/ancient-bulgarian-calendar/
  17. http://cometobulgaria.vegena-bg.com/catalog/a_102_1.html
  18. https://www.bulgaria-embassy.org/en/history-and-symbols/
  19. http://tomispev.tripod.com/proto_bulgar_calendar.htm
  20. http://www.kroraina.com/?a=sr&fr=ct&id=2011&pg=all
  21. https://bgkalendar.com/?lang=en
  22. http://cometobulgaria.vegena-bg.com/catalog/a_2_1.html
  23. https://www.facebook.com/groups/1331722814218106/posts/1553519198705132/
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