Lev Davidovich Bronstein (7 November [O.S. 26 October] 1879 – 21 August 1940), better known as Leon Trotsky, was a Russian revolutionary, Soviet politician, and political theorist. He was a key figure in the 1905 Revolution, October Revolution of 1917, the Russian Civil War, and the establishment of the Soviet Union, from which he was exiled in 1929 before his assassination in 1940. Ideologically a Marxist and a Leninist, Trotsky's ideas inspired a school of Marxism known as Trotskyism.
https://en.wikipedia.org/wiki/Leon_Trotsky