Social Democracy of the Kingdom of Poland and Lithuania
Social Democracy of the Kingdom of Poland and Lithuania Socjaldemokracja Królestwa Polskiego i Litwy | |
|---|---|
| Founded | 1893 (as SDKP); 1899 (as 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. It later merged into the Communist Workers Party of Poland. Its most famous member was Rosa Luxemburg.