| YEAR | DATE | EVENT | SULTAN |
| 1630 | Sultanate - Pinangawan Dynasty | raja and Yang di Pertuan-Assahan Abdul Jalil I | |
| 16xx | raja and Yang di Pertuan-Assahan Said Shah | ||
| 17xx | raja and Yang di Pertuan-Assahan Muhammad Mahrum Shah | ||
| 1760 | raja and Yang di Pertuan-Assahan Abdul Jalil II | ||
| 1765 | raja and Yang di Pertuan-Assahan Deva Shah | ||
| 1805 | raja and Yang di Pertuan-Assahan Said Musa Shah | ||
| 1808 | raja and Yang di Pertuan-Assahan Muhammad Ali Shah | ||
| 1813 | sultan and Yang di Pertuan Besar of the State of Assahan Muhammad Husain Rahman Shah I | ||
| 1859 | 10 february | sultan and Yang di Pertuan Besar of the State of Assahan Ahmad Shah | |
| 1888 | 27 june | sultan and Yang di Pertuan Besar of Assahan Muhammad Husain Rahman Shah II | |
| 1915 | 7 july | sultan and Yang di Pertuan Besar of Assahan Abdul Jalil III | |
| 1946 | Union to Indonesia |