Social Democracy of the Kingdom of Poland and Lithuania

The Social Democracy of the Kingdom of Poland and Lithuania (Polish: Socjaldemokracja Królestwa Polskiego i Litwy, SDKPiL), originally the Social Democracy of the Kingdom of Poland (SDKP), was a Marxist political party founded in 1893. It later merged into the Communist Workers Party of Poland. Its most famous member was Rosa Luxemburg.

Social Democracy of the Kingdom of Poland and Lithuania

The Social Democracy of the Kingdom of Poland and Lithuania (Polish: Socjaldemokracja Królestwa Polskiego i Litwy, SDKPiL), originally the Social Democracy of the Kingdom of Poland (SDKP), was a Marxist political party founded in 1893. It later merged into the Communist Workers Party of Poland. Its most famous member was Rosa Luxemburg.