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| YEAR | DATE | EVENT | HEAD OF STATE | PRIME MINISTER |
| 1606 | Khanate | |||
| 1722 | Khan Dawud | |||
| 1728 | may | Khan Makhithar | ||
| 1730 | Khan Ughurlu II | |||
| 1738 | Khan Chemskeseka | |||
| 1747 | Khan Panah Khan `Ali Beg | |||
| 1761 | Khan Ibrahim Khalil | |||
| 1806 | 14 june | Mahdi Quli Khan Muzaffar | ||
| 1822 | october | Russian occupation | ||
| 1920 | 25 december | Syunik Autonomous Republic | Garegin Ter-Arutyunian | |
| 1921 | 26 april | Simeon Vratsyan | ||
| 1921 | 15 july | Part of Azerbaijan | ||
| 1991 | 3 september | Republic | Artur Mkrtchyan | Oleg Yessayan |
| 1992 | 15 april | Georgy Petrosyan | ||
| 1992 | august | Robert Kocharyan | ||
| 1993 | 14 june | Garen Baburyan | ||
| 1994 | 29 december | Robert Kocharyan | Leonard Petrosyan | |
| 1997 | 20 march | Leonard Petrosyan | ||
| 1997 | 8 september | Arkady Gukasyan | ||
| 1998 | june | Zhirayr Pogosyan | ||
| 1999 | 30 june | Anushavan Danielyan | ||
| 2007 | 7 september | Bako Sahakyan | Araik Arutyunyan | |
| 2024 | 1 january | "Reincorporated" into Azerbaijan |