The Russian Revolution refers to a series of events that took place in 1917, leading to the overthrow of the Tsarist autocracy and the establishment of a communist government in Russia. This monumental shift transformed Russia from an imperial state into a socialist society, affecting global politics and inspiring revolutionary movements worldwide. The revolution consisted of two major phases: the February Revolution, which ended centuries of Romanov rule, and the October Revolution, which brought the Bolsheviks to power.