the united states was given Florida throught the treaty of 1819
It was called The Treaty of Guadalupe Hilgado.
On February 2, 1848 the Treaty Guadalupe-Hidalgo consolidated the Mexican Cession.
The British cession of 1842 was a result of the Aroostook war which ended in the Webster-Ashburton Treaty.
The convention or treaty of 1818
The Mexican Cession was acquired in 1848 at the Treaty of Guadalupe Hidalgo.
Mexican Cession
The Treaty of Paris included a provision that granted the Americans a significant cession of land. The treaty was negotiated in 1783.
From the Mexican Cession of the Treaty of Guadalupe Hidalgo.
Through the treaty of Guadalupe-Hildalgo in 1848
The Florida cession is when Andrew Jackson claims Florida in 1819 from Spain, by paying 5 million dollars.IMPROVED ANSWER:Lacking mineral wealth, Florida had been nothing but an expensive burden to Spain. Mexico was far more important to Spain. However, Spain demanded a marked boundary between American and Spanish claims in the Far West. President John Q. Adams, quickly agreed, and drew a line across the map from Texas to the Pacific Ocean.The Transcontinental Treaty (aka The Adams ~ Onis Treaty), was signed in February 1819. It was a feat of brilliant diplomacy. In it Spain sold Florida to the United States for $5 million.The transcontinental line through the West did not simply define American and Spanish claims. By extending the line all the way to the Pacific (it is the boundary today between California and Oregon), Adams staked an American claim to the Pacific Coast without spending arms or money. He was one of the first to foresee a transcontinental republic, stretching from sea to sea.
The Mexican Cession and the Treaty of Guadalupe Hidalgo.