Washington
| YEAR | DATE | EVENT | GOVERNOR | 
| 1846 | 17 july | Part of Oregon Territory | 
| 1853 | 17 march | U.S. Territory | Isaac I. Stevens | 
| 1857 | august |  | C.H. Mason (I) | 
| 1857 | september |  | Fayette McMullen | 
| 1858 | august |  | C.H. Mason (II) | 
| 1859 | july |  | Richard D. Gholson | 
| 1860 | may |  | Henry M. McGill | 
| 1861 | april |  | William H. Wallace | 
| 1861 |  |  | L. J. S. Turner | 
| 1862 | june |  | William Pickering | 
| 1866 | november |  | George E. Cole | 
| 1867 | 4 march |  | Marshall F. Moore | 
| 1869 | 5 april |  | Alvan Flanders | 
| 1870 | april |  | Edward S. Salomon | 
| 1872 | april |  | Elisha P. Ferry | 
| 1880 | april |  | William A. Newell | 
| 1884 | april |  | Watson C. Squire | 
| 1887 | april |  | Eugene Semple | 
| 1889 | march |  | Miles C. Moore | 
| 1889 | 11 november | 42^ state of U.S.A. | 
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