Born Dec. 4, 1881, in Christiania (Oslo); died there Aug. 26, 1932. Norwegian historian and political leader. Professor (from 1917).
Bull was one of the leaders of the Norwegian Labor Party and in 1923 became its vice-chairman. In January and February 1928 he was minister of foreign affairs in the Hornsrud government. As a historian, Bull was primarily concerned with problems of Norway’s social development during the Middle Ages. He tried to reexamine these problems from a Marxist point of view.