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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1917 | 8 november | Federal Socialist Republic | Vladimir Ilich Lenin | |
| 1922 | 30 december | Soviet Union | Mikhail Ivanovich Kalinin | Vladimir Ilich Lenin |
| 1924 | 21 january | Aleksey Ivanovich Rykov | ||
| 1930 | 19 december | Vyacheslav Mikhaylovich Molotov | ||
| 1941 | 6 may | Joseph Vissaryonovich Stalin | ||
| 1946 | 19 march | Nikolay Mikhaylovich Shvernik | ||
| 1953 | 15 march | mar. Kliment Yefremovich Voroshilov | Georgy Maksimilianovich Malenkov | |
| 1955 | 8 february | mar. Nikolay Aleksandrovich Bulganin | ||
| 1958 | 27 march | Nikita Sergeyevich Khrushchev | ||
| 1960 | 7 may | Leonid Ilich Brezhnev (I) | ||
| 1964 | 15 july | Anastas Ivanovich Mikoyan | ||
| 1964 | 15 october | Aleksey Nikolayevich Kosygin | ||
| 1965 | 9 december | Nikolay Viktorovich Podgorny | ||
| 1977 | 16 june | Leonid Ilich Brezhnev (II) | ||
| 1980 | 23 october | Nikolay Aleksandrovich Tikhonov | ||
| 1982 | 10 november | Vasily Vasilyevich Kuznetsov (I) | ||
| 1983 | 16 june | Yury Vladimirovich Andropov | ||
| 1984 | 12 february | Konstantin Ustinovich Chernenko | ||
| 1985 | 10 march | Vasily Vasilyevich Kuznetsov (II) | ||
| 1985 | 2 july | Andrey Andreyevich Gromyko | ||
| 1985 | 27 september | Nikolay Ivanovich Ryzhkov | ||
| 1988 | 1 october | Mikhail Sergeyevich Gorbachev | ||
| 1990 | 15 march | Federal Republic | Mikhail Sergeyevich Gorbachev | Nicholaj Ryzhkov |
| 1991 | 14 january | Valentin Sergeyevich Pavlov | ||
| 1991 | 24 august | Ivan Stepanovich Silayev | ||
| 1991 | 31 december | Division into 15 nations |