Poland: Polity Style: 1989-2025
| 31 Dec 1989 | the name of the state is changed in accordance with the amendments to the Constitution of the People's Republic of Poland passed by the Sejm on 29 Dec 1989 and by the Senate (Senat) on 30 Dec 1989, effective upon promulgation on 31 Dec 1989 (Poland Law Journal, No. 75, 31 Dec 1989, pp. 1147-1148) [1] |
| 31 Dec 1989 - | Rzeczpospolita Polska | Republic of Poland |
- Full title: Ustawa z dnia 29 grudnia 1989 r. o zmianie Konstytucji Polskiej Rzeczypospolitej Ludowej.