Communism in Poland

Communism in Poland can trace its origins to the late 19th century: the Marxist First Proletariat party was founded in 1882. Rosa Luxemburg (1871–1919) of the Social Democracy of the Kingdom of Poland and Lithuania (Socjaldemokracja Królestwa Polskiego i Litwy, SDKPiL) party and the publicist Stanisław Brzozowski (1878–1911) were important early Polish Marxists.

During the interwar period in the Second Polish Republic, some socialists formed the Communist Party of Poland (Komunistyczna Partia Polski, KPP). Most of the KPP's leaders and activists perished in the Soviet Union during Joseph Stalin's Great Purge in the 1930s, and the party was abolished by the Communist International (Comintern) in 1938.