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The Oregon Treaty locks the 49th parallel as the boundary between the United Sta
Featured Event 1846 Event

June 15

Oregon Treaty Settles Border at 49th Parallel

The Oregon Treaty locks the 49th parallel as the boundary between the United States and Canada, stretching from the Rocky Mountains to the Strait of Juan de Fuca. This agreement defuses a decade-long territorial dispute that threatened armed conflict, allowing both nations to expand their settlements without further bloodshed.

June 15, 1846

180 years ago

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