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| YEAR | DATE | EVENT | PRESIDENT |
| 1920 | 4 november | Sovietic self-governing Region | |
| 1935 | 20 october | Sovietic Socialist Republic | |
| 1943 | 27 december | Union to Russia | |
| 1958 | 2 february | Sovietic Socialist Republic |
| YEAR | DATE | EVENT | PRESIDENT |
| 1992 | 31 march | Russian Republic | Ilya Erdyevich Bugdayev |
| 1993 | 11 april | Kirsan Nikolayevich Ilyumzhinov |