What event in 1917 marked the overthrow of the Provisional Government and the establishment of Bolshevik rule in Russia? February Revolution October Revolution December Uprising July Days None Who was the leader of the Bolshevik Party and the key figure in the October Revolution? Joseph Stalin Vladimir Lenin Leon Trotsky Alexander Kerensky None The Russian Revolution resulted in the abdication of which last Russian tsar in 1917? Nicholas I Nicholas II Alexander II Peter the Great None What treaty in 1918 marked Russia's withdrawal from World War I and the cession of significant territories to the Central Powers? Treaty of Versailles Treaty of Brest-Litovsk Treaty of Trianon Treaty of Saint-Germain-en-Laye None What political entity was formed in 1922, uniting various Soviet republics under a single socialist government? Russian Empire Provisional Government Soviet Union Warsaw Pact None Time's up