Gained from Spain in exchange for $5 million in land claims owed
Territory gained after winning the Revolutionary War
Original United States that declared independence
Bought from France for $15 Million
Split with Great Britain at the 49th parallel
Taken from Mexico after victory in the Mexican-American War, paid Mexico $15 million
Annexed after 9 years of wanting to join the United States
Bought for $10 million from Mexico to build a railroad that would never be built