The Soviet-aligned communist state that governed Poland after World War II, with borders shifted westward (the 'Recovered Territories' from Germany) in compensation for eastern territories ceded to the USSR.
Peacefully transformed into a democratic Third Polish Republic following the 1989 Round Table Agreement and semi-free elections; formally renamed 1 January 1990 (Wikidata's own dissolved date for this QID is recorded as 1989-12-31).
Covers the postwar communist consolidation.
On the 1980s Solidarity movement that ended the People's Republic.