| |
Date |
Event(s) |
| 1 | 1843 | - 1843—1848: Provisional OR Government
Provisional Oregon Government
|
| 2 | 1847 | - 28 Dec 1847: Linn County Forrmed
Created from the southern portion of Champoeg County.
|
| 3 | 1848 | - 14 Aug 1848—14 Feb 1859: Oregon Territory
Oregon Territorial Government
|
Bef 1925 - Yes, date unknown