<P> The Louisiana Purchase was by far the largest territorial gain in U.S. history . Stretching from the Mississippi River to the Rocky Mountains , the purchase doubled the size of the United States . Before 1803 , Louisiana had been under Spanish control for forty years . Although Spain aided the rebels in the American Revolutionary War , the Spanish did n't want the Americans to settle in their territory . </P>
<P> The Louisiana Purchase was by far the largest territorial gain in U.S. history . Stretching from the Mississippi River to the Rocky Mountains , the purchase doubled the size of the United States . Before 1803 , Louisiana had been under Spanish control for forty years . Although Spain aided the rebels in the American Revolutionary War , the Spanish did n't want the Americans to settle in their territory . </P>
what did the louisiana territory do to the size of the united states
what did the louisiana territory do to the size of the united states
the purchase doubled the size of the United States
the purchase doubled the size of the United States