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| YEAR | DATE | EVENT | GOVERNOR |
| 1804 | Part of Lousiana | ||
| 1812 | 7 december | Part of Missouri | |
| 1854 | 30 may | U.S. Territory | Andrew Horatio Reeder |
| 1855 | 16 august | Daniel Woodson (I) | |
| 1855 | 7 september | Wilson Shannon | |
| 1856 | 18 august | Daniel Woodson (II) | |
| 1856 | 9 september | John White Geary | |
| 1857 | 12 march | Daniel Woodson (III) | |
| 1857 | 16 april | Frederick P. Stanton (I) | |
| 1857 | 27 may | Robert James Walker | |
| 1857 | 16 november | Frederick P. Stanton (III) | |
| 1857 | 21 december | James William Denver | |
| 1858 | 10 october | Hugh S. Walsh | |
| 1858 | 18 december | Samuel Medary | |
| 1860 | 17 december | George M. Beebe | |
| 1861 | 29 january | 34^ state of U.S.A. |