The Russian Revolution was a series of revolutions in Russia in 1917 that overthrew the Tsarist autocracy and led to the establishment of the Soviet Union. The revolution began with the February Revolution, which resulted in the abdication of Tsar Nicholas II and the establishment of a provisional government. This was followed by the October Revolution, in which the Bolsheviks, led by Vladimir Lenin, seized power and established a socialist government. The Russian Revolution had a profound impact on the course of world history, leading to the spread of communism and the establishment of the Soviet Union as a major world power.
