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.
Legislative Sejm (Second Polish Republic)
The Legislative Sejm was formed in the aftermath of World War I on the territories of the newly independent Second Polish Republic. In late 1918 Polish state was governed by Józef Piłsudski, who quickly begun the work to organize election to the first Polish national parliament (Sejm) since the Grodno Sejm of 1793, held two years before partitions of Poland ended the independent existence of the Polish-Lithuanian Commonwealth.