Socialist Federal Republic of Yugoslavia was created in 1943.
Socialist Party of Yugoslavia was created in 1921.
Latvian Socialist Soviet Republic was created in 1918.
Czechoslovak Socialist Republic was created in 1960.
Socialist Republic of Serbia was created in 1945.
The 'Socialist Republic of Macedonia' was created on 1944-08-02 as an independent state within Yugoslavia when its name was changed from Vardar Banovina as part of the communist regime's expansionist agenda to wrest historical Macedonia away from Greece.
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.
Tajik Soviet Socialist Republic was created in 1929.
Persian Socialist Soviet Republic was created in 1920.
Hero of the Czechoslovak Socialist Republic was created in 1955.