Please categorize the items below into one of three areas: political, economic, or geographical or none of them.

1. Thomas Jefferson decided to buy land for the United States. This was NOT in the Constitution. This began a tradition of the loose interpretation of the Constitution.
2. The decision to purchase Louisiana doubled the land of the United States.
3. President Jefferson hired Lewis and Clark to explore the newly acquired territory.
4. The Louisiana Purchase ended the threat of a French Empire near the young United States.
5. Fifteen new states, carved out of the Louisiana Territory, would eventually be added to the United States of America.
6. The Louisiana Purchase cost $15 million, which would be approximately $310 million today.
7. The United States now contained the Mississippi, Missouri, and Arkansas rivers.
8. Politicians in the United States would soon be fighting over whether or not to have slavery in the new territory/states.
9. The Rocky Mountains became the Western border of the United States.
10. Western farmers would be able to trade along the Mississippi River again.
11. The land acquired in the Louisiana Purchase was approximately 827,000 square miles.
12. The United States would become a more powerful country.
13. The United States now controlled the important port city of New Orleans.
14. The Louisiana Purchase cost 4¢ per acre, which would be approximately $1.00 per acre today.
15. Native Americans living in the Louisiana Territory would be displaced (moved) by the United States government.