What year did the Russian Revolution take place when the Bolsheviks seized power?

The Bolsheviks seized power during the October Revolution, which took place in 1917. This event marked a significant turning point in Russian history, as the Bolsheviks, led by figures such as Vladimir Lenin, overthrew the Provisional Government that had been established after the abdication of Tsar Nicholas II earlier in the year.

The revolution was part of a larger wave of unrest and dissatisfaction with the existing government due to factors like military failures in World War I, economic hardship, and social inequalities. The successful coup established a socialist government and set the stage for the civil conflict known as the Russian Civil War, which followed shortly thereafter. This pivotal moment in 1917 changed the trajectory of Russia and, ultimately, the world, as it led to the establishment of the Soviet Union.