David Thompson Claims Columbia District for Britain
July 9th, 1811
July 9th, 1811

How Long Ago?
213 years, 8 months, 6 days ago
Location
Sacajawea State Park, Washington, USA
Category
Exploration & Discovery
People
- David Thompson
Links & References
Tags
David Thompson Claims Columbia District for Britain
Explorer David Thompson planted a sign near what is now Sacajawea State Park in Washington state, formally claiming the Columbia District for the United Kingdom. This act was part of Thompson's exploration efforts as a representative of the Northwest Company, aimed at asserting British interests in the Pacific Northwest amidst growing tensions of American expansionism. The location was significant due to its proximity to the confluence of the Columbia and Snake rivers, which were vital for trade and exploration.
Thompson was an explorer for the North West Company.
The Columbia District was a vital fur trading area.
The location is near present-day Sacajawea State Park.
This act claimed land amid Anglo-American tensions.
What Happened?
Explorer David Thompson, widely regarded for his mapping and exploration skills in North America, took a significant step in 1811 by posting a sign near the confluence of the Columbia and Snake rivers, the site of present-day Sacajawea State Park in Washington State. As a representative of the North West Company, Thompson was navigating the complexities of North American territorial claims, marked by competition between British and American interests. His claim of the Columbia District for the United Kingdom was intended to establish British dominance in fur trading and other economic activities in the region. The act took place amidst a backdrop of increased exploration and colonization efforts in the early 19th century, as both nations vied for control over the fertile and resource-rich western frontiers. By placing the sign, Thompson not only marked the land for Britain but also underscored the strategic importance of the Columbia River for trade routes. It became a point of reference for later exploration expeditions.
Why Does it Matter?
This event is intriguing as it represents a tangible assertion of territorial claim during a pivotal time of exploration and expansion in North America. Thompson's actions contributed to shaping the geopolitical landscape of the Pacific Northwest, influencing future treaties and conflicts over land ownership between the United States and Great Britain. The placement of the sign would later become part of the larger narrative surrounding the Oregon Boundary Dispute, a focal point in the 19th-century discussions about borders and national identity.
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