56,982), which just about doubled the population of the municipality.
Following the example set by the renaming of the capital Kristiania to Oslo, Nidaros was reintroduced as the official name of the city for a brief period from 1 January 1930 until 6 March 1931. The name was restored in order to reaffirm the city's link with its glorious past, despite the fact that a 1928 referendum on the name of the city had given this result: 17,163 votes in favour of Trondhjem and 1,508 votes in favour of Nidaros. Public outrage later in the same year, even taking the form of riots, forced the Storting to settle for the medieval city nameTrondheim. The name of the diocese was, however, changed from Trondhjem stift to Nidaros bisped�mme (English: Diocese of Nidaros) in 1918.
Shortly during World War II Trondheim has been named Drontheim, as a German exonym.
Historically, Trondheimen indicates the area around the Trondheimsfjord. The spelling Trondhjem was officially rejected, but many still prefer that spelling of the city's name. Today, most natives still refer to the city as Tr�nnj�mm.
The coat-of-arms dates back to the 13th century. To the left, there is an archbishop with his staff and mitre in a church archway. On the right, a crowned king holding scales in a castle archway. These two pictures rest on a base which forms an arch. Underneath that arch, are three male heads which symbolize the city's rank as Norway's first capital and the archbishop's place of residence. The scales symbolize justice and the motif is based on the political philosophy of the 13th century, where the balance of power between king and church was an important issue. The three heads at the bottom may symbolize the city council. The motif is unique in Norwegian municipal heraldry, but similar motifs are found in bishopric cities on the continent. The design of the coat-of-arms that was adopted in 1897, and is still used today, was made by H�kon Thorsen
