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Signing of the Adams–Onís Treaty
- When
- 22 February 1819
- Where
- Washington, D.C.
John Quincy Adams and Luis de Onís signed the treaty on 22 February 1819, transferring Florida to the US in exchange for Texas renunciation.
The agreement was signed after two years of difficult negotiations. It involved the intervention of the French ambassador Hyde de Neuville, who defended the Spanish position against radicalism in the US Congress. The treaty established a transcontinental boundary and defined the border along the Red River to the 100th meridian.
Sources
- Adams–Onís Treaty Wikipedia
- Luis de Onís Wikipedia, revision of 2026-06-29
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.