Richard Müller (9 December 1880 – 11 May 1943) was a German socialist, metal worker, union shop steward, and later historian. Trained as a lathe-operator, Müller later became an industrial unionist and organizer of mass-strikes against World War I. In 1918 he was a leading figure of the council movement in the German Revolution. In the 1920s he wrote a three-volume history of the German Revolution. Source: Wikipedia (en)