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| YEAR | DATE | EVENT | HEAD OF STATE | PRIME MINISTER |
| 1971 | 30 september | Independent Kingdom | king Jigme Dorji Wangchuk | |
| 1972 | 21 july | king Jigme Singye Wangchuk | ||
| 1998 | 20 july | Lyonpo Jigme Thinley (I) | ||
| 1999 | 9 july | Lyonpo Sangay Ngedup (I) | ||
| 2000 | 8 july | Lyonpo Yeshey Zimba (I) | ||
| 2001 | 8 august | Lyonpo Khandu Wangchuk (I) | ||
| 2002 | 14 august | Lyonpo Kinzang Dorji (I) | ||
| 2003 | 30 august | Lyonpo Jigme Thinley (II) | ||
| 2004 | 20 august | Lyonpo Yeshey Zimba (II) | ||
| 2005 | 5 september | Lyonpo Sangay Ngedup (II) | ||
| 2006 | 7 september | Lyonpo Khandu Wangchuk (II) | ||
| 2006 | 15 december | king Jigme Khesar Namgyal Wangchuk | ||
| 2007 | 31 july | Lyonpo Kinzang Dorji (II) | ||
| 2008 | 9 april | Lyonpo Jigme Thinley (III) | ||
| 2018 | 7 november | Lotay Tshering | ||
| 2024 | 28 january | Lyonchhen Tshering Tobgay |