Polish People's Republic
The Polish People's Republic (, ) was a state in Central Europe that existed from 1947 to 1989, and the predecessor of the modern democratic Republic of Poland. With a population of approximately 37.9 million inhabitants near the end of its existence, it was the most populous state of the Eastern Bloc after the Soviet Union. Having a unitary Marxist–Leninist communist government, it was also one of the main signatories of the Warsaw Pact. The official capital since 1947 and largest city was Warsaw, followed by industrial Łódź and cultural Kraków.
Polish Workers' Party
Under PPR rule, the Republic of Poland was a declared "people's democracy" and was not officially considered a socialist entity. Private property and free market functionality were tolerated and the role of the state was not overly exposed. All this had changed with the establishment of the PZPR: the Six-Year Plan of heavy industrial development was imposed and the building of state socialist system and society commenced in earnest.