How did the boundaries of the United States change between 1812 and 1821?

the United States purchased the Florida Territory from Spain and seven states were admitted into the Union. Florida was transferred from Spain to the United States for $5 million, with the signing of the Adams-Onis Treaty in 1821.

Explanation:

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation:

i would need the graph to answer the question