Oregon Treaty (1846)
- Control of the "Oregon country", present-day Oregon, Washington, and Idaho, parts of Montana and Wyoming, and half of British Columbia was a major political issue.
- Unable to resolve the conflicting claims of George Vancouver (a naval officer) and Robert Gray (a fur trader), they agreed in an 1818 treaty to allow citizens of each country equal access to the territory.
- Was known as a "joint occupation" which continued for twenty years
- American interest in Oregon grew substantially
- Significant numbers of white Americans began emigrating to Oregon in the early 1840's and they soon substantially outnumbered the British settlers there.