Northern Norway
The jurisdiction for southern Norway started as the Apostolic Vicariate of Oslo (1931–1953), growing quickly enough to become the Roman Catholic Diocese of Oslo in 1953. The jurisdiction for Norway north of the polar circle started as the Missionary District of Northern Norway (1931–1944), growing to the Apostolic Prefecture of Northern Norway (1944–1955), the Apostolic Vicariate of Northern Norway (1955–1979), and the Roman Catholic Territorial Prelature of Tromsø on 28 March 1979.