Hashomer Hatzair
The Socialist League of Palestine was a political organization in Mandate Palestine. Established in 1936, it was connected to the left-Zionist Hashomer Hatzair movement. The Socialist League functioned as the urban ally of the Kibbutz Artzi movement. In 1946, the Socialist League and Kibbutz Artzi movement founded the Hashomer Hatzair Workers Party (one of the fore-runners of MAPAM).