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.