United States territorial acquisitions
West Florida was declared to be a U.S. possession in 1810 by President James Madison after the territory had declared its independence from Spain. Madison ordered the U.S. Army to take control. Six weeks later, the army entered and occupied the capital, St. Francisville, putting an end to the republic after 74 days of independence. Spain did not relinquish its claim to sovereignty (see West Florida Controversy) until ratification of the Adams–Onís Treaty. General Andrew Jackson personally accepted the delivery of West Florida from its Spanish governor on July 17, 1821.
Fugitive slaves in the United States
Prior to the establishment of the United States, and extending until Florida became a territory of the United States in 1821, the destination of many fugitive slaves was Spanish Florida. In a policy formalized in 1693, Spain offered escaped British slaves safe refuge and freedom, provided they converted to Catholicism and served a period in the militia. The first free settlement of former slaves in the Americas was Santa Teresa de Mosé, near St. Augustine, Florida. This community disbanded when Florida became a British possession in 1763, most of the slaves withdrawing to Cuba with the Spanish troops defending the San Marcos fort in Saint Augustine.