Capitalising on the February revolution which overthrew the Tsarist autocracy in Russia, an armed insurrection led by the Bolsheviks and Vladimir Lenin took place on 25th October 1917 (7th November 1917 in the New Style) in Petrograd, leading to the world’s first self-proclaimed socialist state. The October Revolution hastened Russia’s exit from WW1, leading to the Treaty of Brest-Litovsk signed on 3rd March 1918 between the new Bolshevik government of Soviet Russia and the Central Powers (Germany, Austria-Hungary, Bulgaria, and the Ottoman Empire).
Following the Twenty-Second 