Russian Revolution

(1917) The revolution which overthrew the Russian imperialist regime and set up the first Marxist proletarian state. Mass demonstrations of revolutionary workers and soldiers in Petrograd led to the abdication of Nicholas II and the overthrow of the imperial government in February 1917. There followed a period of power-sharing between a provisional government and the Petrograd Soviet, known as ‘dual power’. Lenin's Bolsheviks refused to collaborate, and in October led an insurgency of armed workers, soldiers, and sailors, seizing political power and establishing the first Soviet government. Under the Treaty of Brest-Litovsk (March 3, 1918), Russia gave up the Baltic states, Finland, Poland, and the Ukraine. Opposition to Russia losing these territories led to the Red Terror, in which counter-revolutionaries (Whites) were arrested and executed. The Red Army defeated White Russian forces in 1921. With Lenin's Russian Communist party in full control, strikes and peasant uprisings were suppressed. In December 1922, the Union of Soviet Socialist Republics (USSR) was officially established.

Russian Revolution can refer to the following events in the history of Russia:

Russian Revolution of 1905, a series of strikes and violent anti-government protests against Tsar Nicholas II. Russian Revolution of 1917, which included: February Revolution, resulting in the abdication of Nicholas II of Russia October Revolution, the Bolshevik seizure of power Third Russian Revolution, the failed anarchist revolution against the Bolsheviks and the White movement 1918 - 1922

When the year is not said in the reference and you come across the term "Russian Revolution", it usually refers to the October Revolution of 1917, whereas references to the revolution of 1905 normally mention the year and references to the February Revolution normally mentions the month.