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Bolsheviks overthrow Provisional Government.
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Policy of "War Communism" began with the state taing control of the whole economy.
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Treaty of Brest-Litovsk, a peace treaty between new Bolshevik government of Soviet Russia and Central Powers.
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New Economic Policy led to a partial return of a market economy with a time of stability.
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Stalin becomes dictator.
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First Five Year Plan was adopted setting goals for the whole economy, marking the end of the New Economic Policy.
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Soviet Union and Nazi Germany conclude a non-aggression pact, Germany invades Poland which starts World War II.
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Stalin dies and is succeeded by Georgi Malenkov as prime minister and by Nikita Khrushchev as first secretary of the Central Committee of the Communist Party.
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Warsaw Pact is formed.
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Khrushchev is replaced as first secretary of the Communist Party by Leonid Brezhnev and Aleksey Kosygin becomes prime minister.
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Chernenko dies and is replaced by Mikhail Gorbachev as general secretary of the Communist Party
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Gorbachev proposes economic and political reform which led to the end of Communism.