Petrograd was the name given to the city of Saint Petersburg, Russia, during World War I, from 1914 to 1924. The name change was part of a nationalistic effort to remove the German-sounding name "Saint Petersburg" and reflect a more Russian identity. Petrograd served as the capital of Russia until 1918, when the capital was moved to Moscow. The city played a significant role in the Russian Revolution of 1917, which led to the rise of the Bolsheviks and the establishment of the Soviet Union. In 1924, the city was renamed Leningrad in honor of Vladimir Lenin, the leader of the Bolshevik Party.