| |
Date |
Event(s) |
| 1 | 1848 | - 14 Aug 1848—14 Feb 1859: Oregon Territory
Oregon Territorial Government
|
| 2 | 1853 | - 1853: Washington Territory Formed
created from Oregon territory to include land north of the Columbia river and east of the Snake river.
|
| 3 | 1859 | - 14 Feb 1859: OR State Formed
Oregon accepted into the United States of America
|
