Louisiana Purchase

Some of his main accomplishments as president include:The Louisiana Purchase - He bought a large section of land to the west of the original 13 colonies from Napoleon of France. Although much of this land was unsettled, it was so large it nearly doubled the size of the United States. He also made a really good deal buying all this land for only 15 million dollars.Lewis and Clark Expedition - Once he had bought the Louisiana Purchase, Jefferson needed to map the area and find out what was west of the country's land. He appointed Lewis and Clark to explore the western territory and report back on what was there.