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Today in History: United States Forms Florida Territory from Two Regions

3/30/2026

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Summary

Story summary

On March 30, 1822, the United States officially merged East Florida and West Florida, forming the Florida Territory. This consolidation followed the 1819 Adams–Onís Treaty, which ceded the land from Spain to the U.S. The territory was governed by the Florida Territorial Council until Florida became a state in 1845.

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Story summary

On March 30, 1822, the United States officially merged East Florida and West Florida, forming the Florida Territory. This consolidation followed the 1819 Adams–Onís Treaty, which ceded the land from Spain to the U.S. The territory was governed by the Florida Territorial Council until Florida became a state in 1845.