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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1945 | 17 january | Republic | Boleslaw Bierut | Edward Osóbka-Morawski |
| 1945 | 4 february | Franciszek Bromberski | ||
| 1945 | 4 february | Wladyslaw Kowalski | ||
| 1945 | 5 february | Boleslaw Bierut (II) | ||
| 1947 | 4 february | Józef Cyrankiewicz (I) | ||
| 1952 | 1 august | Popular Republic | Boleslaw Bierut (II) | Józef Cyrankiewicz (I) |
| 1952 | 20 november | Aleksander Zawadzki | Boleslaw Bierut | |
| 1954 | 19 march | Józef Cyrankiewicz (II) | ||
| 1964 | 7 august | Edward Ochab | ||
| 1968 | 10 april | mar. Marian Spychalski | ||
| 1970 | 23 december | Józef Adam Zygmunt Cyrankiewicz | Piotr Jaroszewicz | |
| 1972 | 28 march | Henryk Jablonski | ||
| 1980 | 18 february | Edward Babiuch | ||
| 1980 | 24 august | Józef Pinkowski | ||
| 1981 | 9 february | gen. Wojciech Jaruzelski | ||
| 1985 | 6 november | gen. Wojciech Jaruzelski | Zbigniew Messner | |
| 1988 | 27 september | Mieczyslaw Franciszek Rakowski | ||
| 1989 | 2 august | Czeslaw Kiszczak | ||
| 1989 | 24 august | Tadeusz Mazowiecki |