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| YEAR | DATE | EVENT | GOVERNOR |
| 1846 | 17 july | U.S. Territory | George Abernethy |
| 1849 | 3 march | Joseph Lane (I) | |
| 1850 | 18 june | Kintzing Prichette | |
| 1850 | 18 august | John P. Gaines | |
| 1853 | 16 may | Joseph Lane (II) | |
| 1853 | 19 may | George L. Curry (I) | |
| 1853 | 2 december | John W. Davis | |
| 1854 | 1 august | George L. Curry (II) | |
| 1859 | 14 february | 33^ state of USA |