The Russian Revolution in 1917 had several significant outcomes, most notably the abdication of Tsar Nicholas II and the establishment of Bolshevik control under Vladimir Lenin. The revolution dismantled centuries of autocratic rule and led to the creation of the world's first communist state. It also resulted in the withdrawal of Russia from World War I through the Treaty of Brest-Litovsk. Additionally, the revolution inspired communist movements worldwide and set the stage for the subsequent Civil War in Russia, which further consolidated Bolshevik power and led to the founding of the Soviet Union in 1922.