1991 Event Soviet Union formally dissolves 11 of 12 republics sign treaty forming Commonwealth of Independent States 1991 Event U.S.S.R. recognizes independence of the 3 Baltic republics 1991 Event U.S.S.R. grants republics right to secede under certain conditions 1944 Event Supreme Soviet enlarges soviet republics' autonomy 1936 Event Armenian SSR, Azerbaijan SSR, Georgian SSR, Kazakh SSR and Kirghiz SSR becomes constituent republics of Soviet Union 1925 Event Uzbekistan and Kirgizistan become autonomous Soviet republics 1923 Event Union of Soviet Socialist Republics form 1923 Event Union of Socialist Soviet Republics established 1922 Event 14 republics form Union of Soviet Socialistic Republics (U.S.S.R.) 1783 Birthday Simon Bolivar, freed 6 Latin American republics from Spanish rule
