Purchase

The Louisiana Purchase was the purchase by the United States of America in 1803. The purchase gained the U.S. 828,000 square miles from the previously owned French land.

This lesson on the Adams-Onis Treaty also know as the transcontinental treaty and the Florida purchase treaty was a treaty between the United States and Spain in 1819 that ceded Florida to the US.

The Louisiana Purchase was the acquisition by the United States of America in 1803 of 828,000 square miles (2,140,000 km2) of France's claim to the territory of Louisiana.