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| YEAR | DATE | EVENT | PRESIDENT |
| 1920 | 24 june | Russian provence | |
| 1925 | 21 april | Sovietic Socialist Republic | |
| 1992 | 31 march | Russian Republic | Edouard Aleksyevich Kubarev |
| 1994 | 21 january | Nikolay Vasilyevich Fyodorov | |
| 2010 | 21 july | Mikhail Ignatyev | |
| 2020 | 29 january | Oleg Nikolayev |