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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1642 | Kingdom - Namgyal dinasty | chogyal Phuntso Namgyal I | |
| 1670 | chogyal Tensubg Namgyal | ||
| 1700 | chogyal Chhagdor Namgyal | ||
| 1716 | Tibet protectorate | chogyal Gyurmed Namgyal | |
| 1733 | chogyal Phuntso Namgyal II (I) | ||
| 1733 | raja Chandzod Tamding | ||
| 17xx | chogyal Phuntso Namgyal II (II) | ||
| 1780 | chogyal Tenzing Namgyal | ||
| 1793 | maharaja Tsugphud Namgyal | ||
| 1817 | 10 february | UK Protectorate (15 guns salute) | |
| 1862 | maharaja Sidkeong Namgyal I | ||
| 1874 | april | maharaja Sir Thutob Namgyal |
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| YEAR | DATE | EVENT | MAHARAJA |
| 1914 | 10 february | Sidkeong Namgyal II | |
| 1914 | 8 december | Sir Tashi Namgyal | |
| 1950 | 15 august | Indian Protectorate |
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| YEAR | DATE | EVENT | MAHARAJA |
| 1962 | |||
| 1963 | 3 december | chogyal Palden Thondup Namgyal |
| YEAR | DATE | EVENT | MAHARAJA |
| 1967 | |||
| 1975 | 10 april | Indian Occupation | |
| 1975 | 16 may | 22° state of India |