Lanka Sama Samaja Party - Revolutionary - was created in 1964.
Lanka Sama Samaja Party was created on 1935-12-18.
Sri Lanka Sama Samaja Party was created in 1982.
Viplavakari Lanka Sama Samaja Party was created in 1950.
Nava Sama Samaja Party was created in 1977.
The Lanka Sama Samaja Party was the first modern political party in Sri Lanka and the first party to have an indigenous name rather than an English one.
Communist Party of Sri Lanka was created in 1943.
Socialist Party of Sri Lanka was created in 2006.
Liberal Party of Sri Lanka was created in 1987.
Revolutionary Party of the Proletariat was created in 1964.
Socialist Equality Party - Sri Lanka - was created in 1968.
Sri Lanka Freedom Socialist Party was created in 1964.
Sri Lanka Freedom Party was created on 1951-09-02.