The Russian Revolution primarily took place in Russia, with major events occurring in Petrograd (now St. Petersburg) in 1917. The revolution comprised two pivotal events: the February Revolution, which led to the abdication of Tsar Nicholas II, and the October Revolution, where the Bolsheviks seized power. This upheaval dismantled the monarchy and initiated a communist government, drastically altering Russia's political landscape. It had profound effects not only on Russia but also influenced global politics and revolutionary movements worldwide. The revolution is often seen as a turning point in 20th-century history due to its consequences for the subsequent spread of communism.