The Louisiana Purchase was one of the largest land deals in history. In 1803, the United States paid approximately $15 million dollars for over 800,000 square miles of land from the French who originally owned it. This land deal was one of the greatest achievements of Thomas Jefferson 's presidency because it more than doubled the size of the United States at a time when the nation 's population growth began to quicken.
Jefferson’s decision to buy the Louisiana Territory doubled the size of the U.S., and its borders went from the Atlantic Ocean merged to the Rocky Mountains, north to Canada, and south to the boundary with Spanish Florida. This gave the U.S. complete control of the Mississippi River as previously France had rights to the
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boundaries, but it also forced migration of the Native Americans and the people of the lands made the natives get kicked out without a say because of the new land people started coming in and pushing the people out. This was a big problem to the natives because they had nowhere to go.
Fourth, Jefferson’s decision to buy the Louisiana Territory impacted trade by helping to secure the port of New Orleans and the use of the Mississippi river for us and helped/expanded westward trade.
Fifth, Jefferson’s decision to buy the Louisiana Territory impacted economics by gaining western half of richest river valley, laid foundations for future major powers, supported Jefferson’s idea for a “great agrarian society” (democratic republican / anti-federalist party goal), by establishing precedents for future expansion: the acquisition of foreign territory and peoples by purchase and their incorporation into the union not as vassal states but on a basis of equal membership (democratic imperialism), getting complete control of Mississippi River and Delta, and getting natural