Socialist Party USA was created on 1973-01-01.
Valencian Socialist Party was created in 1962.
Gabonese Socialist Party was created in 1992.
Socialist Workers Party - Ireland - was created in 1971.
Zionist Socialist Workers Party was created in 1904.
German Socialist Labour Party of Poland was created on 1925-08-09.
Freedom Socialist Party was created in 1966.
Republican-Socialist Party was created in 1911.
Socialist Mexican Party was created in 1987.
Silesian Socialist Party was created in 1928.
Gabonese Socialist Party was created in 1992.
Cuban Socialist Party was created in 1899.
Burma Socialist Party was created in 1945.
Praja Socialist Party was created in 1952.
Socialist-Revolutionary Party was created in 1901.
Independent-Socialist Party was created in 1958.
Cork Socialist Party was created in 1945.
Progressive Socialist Party was created in 1949.