Question: In which year was this county and municipality founded, where the Norwegian jazz orchestra Batagraf is based?

full_context: Document 1: Oslo University Hospital, Ullevål: Oslo University Hospital, Ullevål (Norwegian: "Oslo universitetssykehus, Ullevål" ), formerly Ullevål University Hospital (Norwegian: "Ullevål universitetssykehus" ) in Oslo, Norway is one of the four main campuses of Oslo University Hospital. It was opened in 1887, and was an independent hospital owned by Oslo municipality and then by the state until it became part of Oslo University Hospital in 2009. It is the largest hospital in Norway.
Document 2: Denmark–Norway: Denmark–Norway (Danish and Norwegian: "Danmark–Norge ") was an early modern multi-national and multi-lingual real union consisting of the Kingdom of Denmark, the Kingdom of Norway (including Norwegian regions Faroe Islands, Iceland, Greenland, et cetera), the Duchy of Schleswig, and the Duchy of Holstein. The state also claimed sovereignty over two historical peoples: Wends and Goths. In addition, the state included colonies: St. Thomas, St. John, St. Croix, Ghana, Tharangambadi, Serampore, and Nicobar Islands. The state's inhabitants were mainly Danes, Norwegians (along with Inuit and Sami), and Germans. The state's largest cities were Copenhagen, Altona, Bergen, Trondheim, and Christiania (Oslo).
Document 3: Snorre Bjerck: Snorre Bjartmann Bjerck (born 25 February 1962 in Florø, Norway) is a Norwegian, jazz musician (percussion and vocals). He has played in bands like "First Set", Jon Balke's Batagraf, and the sami band Transjoik., and is otherwise known from recordings and performances with the likes of Morten Harket, Sissel Kyrkjebø, Mari Boine, Nils Petter Molvær, Bjørn Eidsvåg, Sigvart Dagsland, Frode Alnæs, Eivind Aarset, Annbjørg Lien, Arve Henriksen, Nils-Olav Johansen, and Tim Whelan (Trans Global Underground, England)
Document 4: True Norwegian Black Metal – Live in Grieghallen: True Norwegian Black Metal – Live in Grieghallen is Gorgoroth's first full-length live album, released by Regain Records. It was recorded live in the studio at Grieghallen Lydstudio in Bergen and Threeman Recordings in Stockholm. The songs on the album represented the most commonly played songs in Gorgoroth's live set. The cover design by Magnus Wohlfart was radically different from the previous three full-length albums, being more reminiscent of the cover of the album "Under the Sign of Hell" (1997). Most of the album was recorded before the departure of vocalist Gaahl and bass guitarist King ov Hell, who had intended on using the band's name and assets. The bass guitar for this album (originally performed by King ov Hell) was later re-recorded by guitarist and band founder Infernus. Infernus dedicated the album to the late Jon Nödtveidt of Dissection.
Document 5: Batagraf: Batagraf (established 2005 in Oslo, Norway) is a Norwegian jazz orchestra, created and led by Jon Balke. In 2009 they attended the Nattjazz in Bergen with the entertainers Are Kalvø and Espen Beranek Holm, two of Norway's most popular radio personalities, for the show «Pratagtaph» gaining brilliant reviews.
Document 6: Bokvennen litterært magasin: Bokvennen litterært magasin is a Norwegian literary magazine, established in 1989 by Jan M. Claussen. The magazine publishes articles, essays, poetry and short fiction from both Norwegian and international writers. Four paper editions are issued annually. "Bokvennen" was in 2011 awarded the Magazine of the Year Award in Norway and also honored as the best cultural magazine in the Nordic countries at the Copenhagen book fair Bogforum. The Norwegian Broadcasting Corporation named "Bokvennen" Norway´s best literary magazine in 2010. Many contemporary authors have been interviewed or presented in Bokvennen, among others Elfriede Jelinek, Dave Eggers, Mircea Cărtărescu, Benjamin Kunkel, Péter Nádas, Jean Echenoz, Michael Cera, Junot Díaz, J. M. Coetzee, Joyce Carol Oates, Miranda July, Nam Le, Alberto Manguel, Nadine Gordimer, Gary Snyder, Michael Chabon, Uwe Tellkamp, Sara Stridsberg, Linn Ullmann, Jon Fosse, Jo Nesbø, Johan Harstad and Karl Ove Knausgård. The editor-in-chief from 2010 to 2014 was literary critic Gabriel Vosgraff Moro. The editor-in-chief from 2015 is journalist and writer Alberte Bremberg. Editorial board: Lene Ask, Mari Nymoen Nilsen, Thea Marie Dolva, Tina Åmodt. "Bokvennen" is supported by the Cultural Council of Norway and the foundation Fritt Ord.
Document 7: Trondheim: Trondheim (] ), historically Kaupangen, Nidaros and Trondhjem, is a city and municipality in Sør-Trøndelag county, Norway. It has a population of 187,353 (January 1, 2016), and is the third most populous municipality in Norway, although the fourth largest urban area. It is the third largest city in the country, with a population (2013) of 169,972 inhabitants within the city borders. The city functions as the administrative centre of Sør-Trøndelag county. Trondheim lies on the south shore of Trondheim Fjord at the mouth of the River Nidelva. The city is dominated by the Norwegian University of Science and Technology (NTNU), the Foundation for Scientific and Industrial Research (SINTEF), St. Olavs University Hospital and other technology-oriented institutions.
Document 8: Norsk Jazzforum: Norsk Jazzforum or The Norwegian Jazz Forum (originally established in 1953, and later reappeared on June 8, 1997 in Oslo, when The Norwegian Jazz Federation and Association Norwegian Jazz Musicians fused into The Norwegian Jazz Forum) is a member and interest organization that gathers the Norwegian jazz community, and works to promote the Norwegian jazz in terms of cultural policy and the arts.
Document 9: Stavanger: Stavanger (] ) is a city and municipality in Norway. The city is the third-largest urban zone and metropolitan area in Norway (through conurbation with neighbouring Sandnes) and the administrative centre of Rogaland county. The municipality is the fourth most populous in Norway. Located on the Stavanger Peninsula in Southwest Norway, Stavanger counts its official founding year as 1125, the year the Stavanger Cathedral was completed. Stavangers core is to a large degree 18th- and 19th-century wooden houses that are protected and considered part of the city's cultural heritage. This has caused the town centre and inner city to retain a small-town character with an unusually high ratio of detached houses, and has contributed significantly to spreading the city's population growth to outlying parts of Greater Stavanger.
Document 10: Oslo: Oslo ( , , ] ] ] ) is the capital and the most populous city in Norway. It constitutes both a county and a municipality. Founded in the year 1040, and established as a "kaupstad" or trading place in 1048 by Harald Hardrada, the city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 and with Sweden from 1814 to 1905 reduced its influence. After being destroyed by a fire in 1624, during the reign of King Christian IV, the city was moved closer to Akershus Fortress and renamed Christiania in the king's honour. It was established as a municipality ("formannskapsdistrikt") on 1 January 1838. Following a spelling reform, it was known as Kristiania from 1877 until 1925, in which year its original Norwegian name of Oslo was restored.
Document 11: Ulver: Ulver (Norwegian for wolves) are a Norwegian experimental musical collective founded in 1993, by vocalist Kristoffer Rygg. Their early works, such as debut album "Bergtatt", were categorised as folklore-influenced black metal, but have since evolved a fluid and increasingly eclectic musical style, blending genres such as rock, electronica, symphonic and chamber traditions, noise, progressive and experimental music into their oeuvre. 1997 marked their international debut with the release of their third album "Nattens madrigal" through German label Century Media. However, following discord with the label, Kristoffer Rygg formed his own imprint Jester Records in 1998. British composer and multi-instrumentalist Daniel O'Sullivan joined the collective in 2009, and the band performed some of their first live concerts in their 15-year lifespan, including the prestigious Norwegian National Opera.
Document 12: Jan Bang: Jan Bang (born 21 August 1968 in Kristiansand, Norway) is a Norwegian musician and record producer, known from several albums and collaborations with musicians like Morten Harket, Sidsel Endresen, David Sylvian, Nils Petter Molvær, Arild Andersen, Bugge Wesseltoft, Arve Henriksen and Erik Honoré.
Document 13: Throne Chairs of Norway: The Throne Chairs of Norway (Norwegian Bokmål: singular "Norges tronstol", plural "-stoler"; Norwegian Nynorsk: singular "Noregs tronstol", plural "-stolar") are the physical representations of the Throne of the Kingdom of Norway. One stands in the building of the Parliament in Oslo, the political capital of Norway, where it is used in a political context. The other stands in Trondheim, the religious capital of Norway, where it was used in a religious context. A lesser known is the Throne Chair in the Council Chamber in the Royal Palace. In addition to the Throne Chairs, there are two coronation chairs (Bokmål and Nynorsk: "kroningstol"), which are also located in Trondheim. Between 1671 and 1814, the Throne Chair of Denmark was de facto also Norway's.
Document 14: Oslo Airport, Gardermoen: Oslo Airport (Norwegian: "Oslo Lufthavn" ; IATA: OSL, ICAO: ENGM ) is the main international airport serving Oslo, the capital of and most populous city in Norway. Oslo is also served by the low-cost airport Torp in Sandefjord, situated 119 km to the south of downtown Oslo. Oslo Airport is the main domestic hub and international airport in Norway, and is the second-busiest airport in the Nordic countries. A hub for Scandinavian Airlines, an operating base for Norwegian Air Shuttle, and a focus city for Widerøe, it connects to 31 domestic and about 128 international destinations. Almost 26 million passengers traveled through the airport in 2016, making it the nineteenth-busiest airport in Europe.
Document 15: Storting: The Storting (Norwegian: "Stortinget" ] , "the great "thing"" or "the great assembly") is the supreme legislature of Norway, established in 1814 by the Constitution of Norway. It is located in Oslo. The unicameral parliament has 169 members, and is elected every four years based on party-list proportional representation in nineteen plural member constituencies. A member of the Storting is known in Norwegian as a "Stortingsrepresentant", literally "Storting representative".
ground_truth: 1040