Social Democracy of the Kingdom of Poland and Lithuania Socjaldemokracja Królestwa Polskiego i Litwy | |
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Founded | 1893 (SDKP), 1899 (SDKPiL) |
Dissolved | 1918 |
Merged into | Communist Party of Poland |
Membership | 40,000 (1906) |
Ideology | Socialism Marxism |
Political position | Far-left |
International affiliation | Second International |
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 and later served as an autonomous section of the Russian Social Democratic Labour Party.[1] It later merged into the Communist Workers Party of Poland. Its most famous member was Rosa Luxemburg.