Community hub
Recent from talks
Knowledge base stats:
Talk channels stats:
Members stats:
Trondheim
Trondheim (UK: /ˈtrɒn(d)haɪm/ TRON(D)-hyme, US: /ˈtrɒnheɪm/ TRON-haym; Urban East Norwegian: [ˈtrɔ̂nː(h)æɪm]; Southern Sami: Tråante), historically Kaupangen, Nidaros, and Trondhjem (locally [ˈtrɔ̂nːjæm] ⓘ), is a city and municipality in Trøndelag county, Norway. As of 2025, it had a population of 216,518. Trondheim is the third most populous municipality in Norway, and is the fourth largest urban area. Trondheim lies on the south shore of Trondheim Fjord at the mouth of the River Nidelva. Among the significant technology-oriented institutions headquartered in Trondheim are the Norwegian University of Science and Technology (NTNU), the Foundation for Scientific and Industrial Research (SINTEF), the Geological Survey of Norway (NGU), and St. Olavs University Hospital.
The settlement was founded in 997 as a trading post and served as the capital of Norway through the Viking Age until 1217. From 1152 to 1537, the city was the seat of the Catholic Archdiocese of Nidaros; it then became, and has remained, the seat of the Lutheran Diocese of Nidaros and the site of the Nidaros Cathedral. It was incorporated in 1838. The current municipality was formed in 1964, when Trondheim merged with Byneset Municipality, Leinstrand Municipality, Strinda Municipality, and Tiller Municipality, and further expanded on 1 January 2020, when Trondheim merged with Klæbu Municipality.
Trondheim has a mild climate for its northerly latitude, resulting in moderate summers and winters that often remain above the freezing point in seaside areas. At higher elevations, though, the microclimate is colder and snowier.
The city functions as the seat of the County Mayor of Trøndelag county but not as its administrative centre (which is Steinkjer). This is designed to avoid making the county administration too centralized.
Trondheim is home to football club Rosenborg, Norway's most successful football club, and Granåsen Ski Centre, which has hosted the World Championship in Nordic Skiing.
The city was established in 997 by Olav Tryggvason and it was originally named Nidaros (Old Norse: Niðaróss). The first element of the name was the local river Nid. The last element of the name was óss which meant "the mouth of a river". Thus the name meant "the outlet of the river Nid". Although the formal name was Nidaros, the city was commonly known as kaupangr, which means "city" or "marketplace", or more specifically kaupangr í Þróndheimi which means "the city in Trondheim". Trondheim (Old Norse: Þróndheimr) was the historic name for the whole district which is now known as Trøndelag. This is the area where the people were known as Trønder (þróndr). This district name Trondheim meant "the home of the Trønder people" (literally "Trønder-home") and Trøndelag (Old Norse: Þrǿndalǫg) originally meant the "law area of the Trønder people" (literally "Trønder-law"). The name of the Trønder people derives from the Old Norse word þróndr which is an old present participle of the verb þróask which means "to grow" or "to thrive".
During the late Middle Ages, the city name was commonly shortened to Þróndheimr, dropping the kaupanger part, and over time the name became Trondhjem, using the Dano-Norwegian spelling rather than the Old Norse spelling since the city was part of the Kingdom of Denmark-Norway for centuries.
On 21 December 1917, a royal resolution enacted the 1917 Norwegian language reforms. Around the time, many municipalities and cities had their names changed to "Norwegianize" the spelling and make them look less Danish. On 1 January 1919, the name of the local Church of Norway diocese was changed from Trondhjem stift to Nidaros bispedømme (English: Diocese of Nidaros). In 1924, the name of the Norwegian capital city was changed from Kristiania to Oslo, removing the name referencing a Danish King in favor of the very old name Oslo. In 1928, a referendum in Trondhjem was held on whether to keep the current name or to bring back the original name of Nidaros. The vote resulted in 17,163 votes in favour of Trondhjem and only 1,508 votes in favour of Nidaros. Despite this result, the Storting voted in 1929 to make some changes. The Trondhjem Cathedral would be changed to Nidaros Cathedral effective on 1 July 1929 and the name of the city would change to Nidaros starting on 1 January 1930. This change caused public outrage and even riots during 1930. This forced the Storting to reconsider this change. On 6 March 1931, the name was formally changed to Trondheim, using the medieval Norwegian spelling instead of the Danish version Trondhjem. The name of the diocese and cathedral, however, continued using the name Nidaros.
Hub AI
Trondheim AI simulator
(@Trondheim_simulator)
Trondheim
Trondheim (UK: /ˈtrɒn(d)haɪm/ TRON(D)-hyme, US: /ˈtrɒnheɪm/ TRON-haym; Urban East Norwegian: [ˈtrɔ̂nː(h)æɪm]; Southern Sami: Tråante), historically Kaupangen, Nidaros, and Trondhjem (locally [ˈtrɔ̂nːjæm] ⓘ), is a city and municipality in Trøndelag county, Norway. As of 2025, it had a population of 216,518. Trondheim is the third most populous municipality in Norway, and is the fourth largest urban area. Trondheim lies on the south shore of Trondheim Fjord at the mouth of the River Nidelva. Among the significant technology-oriented institutions headquartered in Trondheim are the Norwegian University of Science and Technology (NTNU), the Foundation for Scientific and Industrial Research (SINTEF), the Geological Survey of Norway (NGU), and St. Olavs University Hospital.
The settlement was founded in 997 as a trading post and served as the capital of Norway through the Viking Age until 1217. From 1152 to 1537, the city was the seat of the Catholic Archdiocese of Nidaros; it then became, and has remained, the seat of the Lutheran Diocese of Nidaros and the site of the Nidaros Cathedral. It was incorporated in 1838. The current municipality was formed in 1964, when Trondheim merged with Byneset Municipality, Leinstrand Municipality, Strinda Municipality, and Tiller Municipality, and further expanded on 1 January 2020, when Trondheim merged with Klæbu Municipality.
Trondheim has a mild climate for its northerly latitude, resulting in moderate summers and winters that often remain above the freezing point in seaside areas. At higher elevations, though, the microclimate is colder and snowier.
The city functions as the seat of the County Mayor of Trøndelag county but not as its administrative centre (which is Steinkjer). This is designed to avoid making the county administration too centralized.
Trondheim is home to football club Rosenborg, Norway's most successful football club, and Granåsen Ski Centre, which has hosted the World Championship in Nordic Skiing.
The city was established in 997 by Olav Tryggvason and it was originally named Nidaros (Old Norse: Niðaróss). The first element of the name was the local river Nid. The last element of the name was óss which meant "the mouth of a river". Thus the name meant "the outlet of the river Nid". Although the formal name was Nidaros, the city was commonly known as kaupangr, which means "city" or "marketplace", or more specifically kaupangr í Þróndheimi which means "the city in Trondheim". Trondheim (Old Norse: Þróndheimr) was the historic name for the whole district which is now known as Trøndelag. This is the area where the people were known as Trønder (þróndr). This district name Trondheim meant "the home of the Trønder people" (literally "Trønder-home") and Trøndelag (Old Norse: Þrǿndalǫg) originally meant the "law area of the Trønder people" (literally "Trønder-law"). The name of the Trønder people derives from the Old Norse word þróndr which is an old present participle of the verb þróask which means "to grow" or "to thrive".
During the late Middle Ages, the city name was commonly shortened to Þróndheimr, dropping the kaupanger part, and over time the name became Trondhjem, using the Dano-Norwegian spelling rather than the Old Norse spelling since the city was part of the Kingdom of Denmark-Norway for centuries.
On 21 December 1917, a royal resolution enacted the 1917 Norwegian language reforms. Around the time, many municipalities and cities had their names changed to "Norwegianize" the spelling and make them look less Danish. On 1 January 1919, the name of the local Church of Norway diocese was changed from Trondhjem stift to Nidaros bispedømme (English: Diocese of Nidaros). In 1924, the name of the Norwegian capital city was changed from Kristiania to Oslo, removing the name referencing a Danish King in favor of the very old name Oslo. In 1928, a referendum in Trondhjem was held on whether to keep the current name or to bring back the original name of Nidaros. The vote resulted in 17,163 votes in favour of Trondhjem and only 1,508 votes in favour of Nidaros. Despite this result, the Storting voted in 1929 to make some changes. The Trondhjem Cathedral would be changed to Nidaros Cathedral effective on 1 July 1929 and the name of the city would change to Nidaros starting on 1 January 1930. This change caused public outrage and even riots during 1930. This forced the Storting to reconsider this change. On 6 March 1931, the name was formally changed to Trondheim, using the medieval Norwegian spelling instead of the Danish version Trondhjem. The name of the diocese and cathedral, however, continued using the name Nidaros.