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| YEAR | DATE | EVENT | HEAD OF STATE | PRIME MINISTER |
| 1922 | november | Kingdom of Southern Kurdistan | Shaykh Mahmud Barzani | |
| 1923 | march | Union to Iraq | ||
| 1974 | 11 march | Iraq Autonomous Region | ||
| 1992 | 19 may | Federate State | Fuad Masum | |
| 1993 | 25 april | Abdullah Rassuls | - | |
| 1996 | september | Abdul Massud Barzani | ||
| 1998 | Nechirvan Idris Barzani |