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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1924 | 28 november | Popular Republic | Navaandorjiyn Jadambaa | Balingiyn Tserendorj Beyse |
| 1924 | 29 november | Peljidiyn Genden | ||
| 1927 | 15 november | Jamtsangiyn Damdinsüren | ||
| 1928 | 21 february | Agdanbuugiyn Amar (I) | ||
| 1929 | 23 january | Horloogiyn Choybalsan | ||
| 1930 | 27 april | Losolyn Laagan | Tsengeltiyn Jigjidav | |
| 1932 | 2 july | Agdanbuugiyn Amar | Peljidiyn Genden | |
| 1936 | 22 march | Dansrabilegiyn Dogsom | Agdanbuugiyn Amar (II) | |
| 1939 | 24 march | Horloogiyn Choybalsan | ||
| 1939 | 9 july | Vacant |
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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1940 | 6 july | Gonchigiyn Bumtsend | ||
| 1952 | 28 may | Yumjaagiyn Tsedenbal | ||
| 1953 | 23 september | Sühbaataryn Yanjmaa | ||
| 1954 | 7 july | Jamtsarangiyn Sambuu | ||
| 1972 | 20 may | Tsagaanlamyn Dügersüren | ||
| 1972 | 29 june | Sonomyn Luvsan | ||
| 1974 | 11 june | Yumjaagiyn Tsedenbal | Jambyn Batmönh | |
| 1984 | 23 august | Nyamyn Jagvaral | ||
| 1984 | 12 december | Jambyn Batmönh | Dumaagiyn Sodnom | |
| 1990 | 21 march | Punsalmaagiyn Ochirbat | Sharavyn Gungaadorj | |
| 1990 | 11 september | Dashiyn Byambasüren |