USA and GB Cnd.
If you are looking for the page with the statistics about this polity you can find it here:All Statistics
The rights over Oregon, a condominium of Spain and Great Britain, were acquired by the U.S. from Spain with the Adams-Onís Treaty (1819). Oregon became a condomiunium of the U.S. and Great Britain.
Establishment
February 1819: Establishing the Oregon Country as a shared region with the United Kingdom. Oregon Country had no defined northern limit, but it can be assumed that it did not encroach much upon Russian-held lands; this map uses the later-established line at 54°40′ north for simplicity.
February 1819: The Adams-Onís Treaty was signed between the United States and Spain in 1819. It established the western boundary of the Louisiana Purchase and granted Spanish rights to Oregon to the United States. This paved the way for the eventual joint occupation of the territory by the United States and Great Britain.
Chronology
Interactive Chronologies with maps are available in the section Changes Navigation
1. Events
January 1820: The Adams-Onís Treaty between the United States and Spain defined the boundary between the U.S. and New Spain.
June 1846: The Oregon Treaty is a treaty between Great Britain and the United States that was signed on June 15, 1846, in Washington, D.C.. The treaty brought an end to the Oregon boundary dispute by settling competing American and British claims to the Oregon Country.
Disestablishment
June 1846: The Oregon Treaty is a treaty between Great Britain and the United States that was signed on June 15, 1846, in Washington, D.C.. The treaty brought an end to the Oregon boundary dispute by settling competing American and British claims to the Oregon Country.
