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Spain, under the Adams-Onís Treaty.
The French and Indian War ended with the signing of the Treaty of Paris in 1763. Under the terms of the treaty, France relinquished its North American territories to Great Britain, while Spain gained control of Florida.
The US purchased Forida from Spain in 1819 under the Adams Onis Treaty.
Pickneys treaty with Spain
As part of the Anglo-Spanish agreement in the Treaty of Paris (1783), the British returned the Mediterranean island of Minorca to Spain, and more importantly the British claim to East Florida and West Florida (now the southeastern US).The British had received Florida from Spain twenty years earlier (1763) after the Seven Years War. The US gradually annexed Florida after the War of 1812 and purchased the remainder under the Adams-Onis Treaty in 1819.As part of the 1783 treaty, Spain ceded Providence Island and the remainder of the Bahamas to the British.
Treaty if Versailles
Florida became a territory of the United States in 1819.
Spain agreed to sell the Philippines to the United States
The Adams-Onís Treaty or the Transcontinental Treaty settled a dispute between Spain and the USA over borders by attempting to draw clearer borders, roughly granting Florida and Louisiana to the U.S. while giving to Spain everything west of Louisiana from Texas to California. The new boundary was to be the Sabine River north from the Gulf of Mexico to the 32nd parallel north, then due north to the Red River, west along the Red River to the 100th meridian, due north to the Arkansas, west to its headwaters, north to the 42nd parallel north, and finally west along the parallel to the Pacific Ocean. The treaty was negotiated by John Quincy Adams, the Secretary of State under U.S. President James Monroe, and the Spanish foreign minister Luis de Onís. Under the terms of the Treaty, the US would receive Florida against payment of $5,000,000 in claims by US citizens against Spain.
In 1781, Pensacola, a region in western Florida, was captured by Spain. By 1783, the Treaty of Paris returned full control of Florida to Spain. In 1810, President James Madison's annexation proclamation claimed parts of Florida. From 1817 to 1818, United States armed forces would gain control of greater parts of eastern Florida. However, Florida would not become an official territory of the United States until 1822.
Under Monroe, the ratified the Onis-Adams treaty which added Florida to the US and settled the border of New Spain(Mexico) with Spain. Spain also dropped its claims to Oregon. Jackson did not really change the borders, but did take steps to free up for settlement some Indian lands in Georgia and Alabama.
SPAIN controlled Florida in 1754. The Spanish controlled Florida from 1513–1821, with a twenty year break from 1763-1783, when the territory was briefly under British control. After 1821, the territory switched to being under United States control, under which it remains to this day.