History of Florida
In 1810, parts of West Florida were annexed by proclamation of President James Madison, who claimed the region as part of the Louisiana Purchase. These parts were incorporated into the newly formed Territory of Orleans. The U.S. annexed the Mobile District of West Florida to the Mississippi Territory in 1812. Spain continued to dispute the area, though the United States gradually increased the area it occupied.Seminole Indians based in East Florida had been raiding Georgia settlements, and runaway American slaves were their allies; Negro Fort, an abandoned British fortification in the far west of the territory, was manned by both Indians and blacks. The United States Army would lead increasingly frequent incursions into Spanish territory, including the 1817–1818 campaign against the Seminole Indians by Andrew Jackson that became known later as the First Seminole War. The United States now effectively controlled East Florida. Control was necessary, according to Secretary of State John Quincy Adams, because Florida had become "a derelict open to the occupancy of every enemy, civilized or savage, of the United States, and serving no other earthly purpose than as a post of annoyance to them." Florida had become a burden to Spain, which could not afford to send settlers or garrisons. Madrid therefore decided to cede the territory to the United States through the Adams–Onís Treaty, which took effect in 1821.
History of Florida
When the Colonies declared independence, many Floridians condemned it. They had been almost unaffected (because East and West Florida were backwoods areas) by the Stamp Act Crisis of 1765, which led the 13 colonies to perceive a common interest threatened by Britain. Florida declined to send delegates to the Continental Congress. The majority of Floridians were Loyalists, grateful to the Crown, that remained loyal to Britain. Many actually helped lead raids on the American South. One disastrous attempt on the part of the American Forces to invade East Florida occurred at the Battle of Thomas Creek in today's Nassau County. It was led on May 17, 1777. American Colonel John Baker surrendered to the British. Another attempt, the Battle of Alligator Bridge took place on June 30, 1778.