Title: Three who made a revolution
Subjects: Biography, Causes, History, Revolutionaries, Lenin, vladimir ilich, 1870-1924, Trotsky, leon, 1879-1940, Stalin, joseph, 1879-1953, Revolutionaries, soviet union, Soviet union, history, revolution, 1917-1921, Soviet union, biography, Soviet union, history
Places: Soviet Union
People: Joseph Stalin (1879-1953), Leon Trotsky (1879-1940), Vladimir Ilʹich Lenin (1870-1924)
Time periods: Revolution, 1917-1921