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August 1, 2025
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feb 22, 1819 - The Transcontinental Treaty, also known as the Adams-Onis treaty, is resolved in February after the conclusion of negotiations dating back to July 1818.

Description:

The treaty transfers the Floridas from Spain to the United States for $5 million, and advances the U.S. border across Mexico to the Pacific Ocean. Spain also relinquishes claims to the Oregon Territory. Secretary of State John Quincy Adams orchestrates the proceedings with the Spanish minister to Washington, Luis de Onis.

Added to timeline:

Date:

feb 22, 1819
Now
~ 206 years ago