2. Louisiana Purchase The Louisiana Purchase was bought by the United states from the French after the Revolutionary war.
3. Louisiana Purchase In 1803 the Louisiana Purchase was bought by Thomas Jefferson. It cost 15 million dollars. Jefferson was not certain that the Louisiana Purchase was constitutional. The Louisiana Purchase is 828,800 square miles and includes 13 states.
4. Louisiana Purchase The Louisiana Purchases' purpose during its era was it gave the new United States a large amount of land. This new land in a growing country allowed a large amount of people to move west for plantation farming and other uses.