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.
Józef Piłsudski
On 11 November 1918 in Warsaw, Piłsudski was appointed Commander in Chief of Polish forces by the Regency Council and was entrusted with creating a national government for the newly independent country. On that very day, which would become Poland's Independence Day, he proclaimed an independent Polish state.