Communist Party of the Karelo-Finnish Soviet Socialist Republic was created in 1940.
Communist Party of the Russian Soviet Federative Socialist Republic was created on 1990-06-19.
Socialist-Communist Union was created in 1923.
Czechoslovak Socialist Republic was created in 1960.
Socialist Republic of Serbia was created in 1945.
Latvian Socialist Soviet Republic was created in 1918.
Ukrainian Soviet Socialist Republic was created in 1917.
Estonian Soviet Socialist Republic was created in 1940.
Kirghiz Soviet Socialist Republic was created in 1936.
Socialist Soviet Republic of Byelorussia was created in 1919.
Socialist Federal Republic of Yugoslavia was created in 1943.
Tajik Soviet Socialist Republic was created in 1929.
Persian Socialist Soviet Republic was created in 1920.