History of Poland
The Polish People's Republic ("Polska Rzeczpospolita Ludowa") was established under the rule of the communist Polish United Workers' Party (PZPR). The name change from the Polish Republic was not officially adopted, however, until the proclamation of the Constitution of the Polish People's Republic in 1952.
National Party (Poland)
During the period of the Polish People's Republic the organization was outlawed in Poland but continued in the Polish emigration with a major centre in London. It was re-established in Warsaw in 1989 by Jan Ostoj Matłachowski, Leon Mirecki, Maciej Giertych, Boguslaw Jeznach, Bogusław Rybicki, and others. The new SN was officially registered on 21 August 1990 in sovereign Poland after the fall of communism in 1989. Most of its members eventually entered the League of Polish Families (LPR) and dissolved the National Party in 2001.