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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1182 | Empire | 1° emperor Temujin Genghis Khan | ||
| 1227 | 2° emperor Ogedai | |||
| 1241 | 3° emperor Guyuk | |||
| 1248 | 4° emperor Mongke | |||
| 1259 | 5° emperor Kublai | |||
| 1294 | State united to China Empire | |||
| 1333 | Empire | emperor Toghan Temur | ||
| 1370 | emperor Ayushiridara Biliktü Qaghan | |||
| 1379 | emperor Togus Temur | |||
| 1389 | emperor Engke Soriktu | |||
| 1393 | emperor Elbek | |||
| 1400 | emperor Gun Timur | |||
| 1403 | emperor Oljei TImur | |||
| 1411 | emperor Delbeg | |||
| 1415 | emperor Eseku | |||
| 1425 | emperor Adai Qa'an | |||
| 1438 | emperor Esen Toghan Tayisi | |||
| 1440 | emperor Tayisung Qa'an | |||
| 1452 | emperor Esen Tayisi | |||
| 1455 | emperor Maqa Kurkis | |||
| 1463 | emperor Mandughuli | |||
| 1467 | emperor Bayan Mongke | |||
| 1470 | interregnum | |||
| 1479 | emperor Dayan Khan | |||
| 1543 | emperor Altan Khan | |||
| 1583 | emperor Tumen Jasaghtu | |||
| 1592 | emperor Sechen Khan | |||
| 1604 | emperor Ligdan Khan | |||
| 1634 | China Provence | |||
| 1911 | 1 december | Russian protectorate | Jabzandamba Hutagt Bogd Gegeen Ezen Haan | Da Lama Tseren |
| 1912 | Sajnnojonkhan Shirindambyn Namnansuren | |||
| 1919 | april | Khatan-Baatar Sandagdorjiyn Maksarjav |
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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1921 | 3 february | Kingdom | king Jabzandamba Hutagt Bogd Gegeen Ezen Haan | Dambyn Chadarjav |
| 1921 | 16 april | Dogsomyn Bodoo | ||
| 1922 | 7 january | Sodnomyn Damdinbazar | ||
| 1923 | 28 september | Balingiyn Tserendorj Beyse | ||
| 1924 | 20 may | Balingiyn Tserendorj Beyse |
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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 |
| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1992 | 12 february | Republic | Punsalmaggyn Otshirbat | Dashiyn Byambasüren |
| 1992 | 21 july | Puntsagiyn Jasray | ||
| 1996 | 19 july | Mendsayhany Enkhsaikhan | ||
| 1997 | 20 june | Natsagiyn Bagabandi | ||
| 1998 | 23 april | Tsakhiagiyn Elbegdorj | ||
| 1998 | 9 december | Janlaviin Narantsatsralt | ||
| 1999 | 22 july | Nyam-Osoriyn Tuyaa | ||
| 1999 | 30 july | Rinchinnyamiyn Amarjargal | ||
| 2000 | 27 july | Nambaryn Enkhbayar | ||
| 2004 | 20 august | Tsakhiagiyn Elbegdorj (II) | ||
| 2005 | 22 may | Nambaryn Enkhbayar | ||
| 2007 | 4 december | Sanj Bayar | ||
| 2009 | 24 may | Tsakhiagiyn Elbegdorj | ||
| 2009 | 26 october | Sükhbaataryn Batbold |