Episode 1 of 1
Treaty of 1818
- When
- 1818
- Where
- Lake of the Woods
The Anglo-American Convention established the boundary along the 49th parallel, creating the Northwest Angle.
Signed in 1818, the treaty resolved boundary issues by running the border due north or south from the Lake of the Woods to the 49th parallel, then west to the Rocky Mountains. This created the Northwest Angle, a pene-exclave in Minnesota, due to geographical misunderstandings.
Sources
- Treaty of 1818 Wikipedia, revision of 2026-10-02
- Northwest Angle Wikipedia, revision of 2026-10-01
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.