The French.
France
What is the territory of the louisana territory
seven cents
France
ALASKA.
The US acquired the territory of Florida from Spain ceding it to the US.
The Louisiana Territory which includes the state of Louisiana and a whole lot more was purchased from France in 1803 for $15 million.
In 1846 Britain agreed for the US to take control of the territory
In 1898 by Act of Congress.
Florida
In 1898 as a Territory by Act of Congress.