1. Western Expansion Treaties

2. Treaty of Paris of 1783

3. Louisiana Purchase

4. Louisiana Purchase

5. Convention of 1818
clarified the northern border of the Louisiana Purchase. The land acquired by the United States in the treaty, known as the Red River Basin, would ultimately become part of the states of Minnesota and North Dakota.

6. Convention of 1818

8. Adams-Onis Treaty Spain sold Florida to United States for $5 million.
The U.S. agreed to assume coverage of the financial claims of Florida residents against the Spanish government.
Spain gave up its claims to Oregon north of the 42nd parallel. (impact)
Spain kept Texas, California and New Mexico. (impact)

9. Adams-Onis Treaty

10. Adams-Onis Treaty

12. Texas Annexation

14. Webster-Ashburton Treaty
The U.S. and Britain established the northeastern boundary of the U.S.
Secretary of State, Daniel Webster and Britain’s ambassador Lord Ashburton negotiated the treaty.
It provided for the Anglo-U.S. cooperation in the suppression of the slave trade.
It finalized the present boundary between Maine and New Brunswick. (impact)
It granted the U.S. navigation rights on the St. John River. (impact)
It provided for extradition in nonpolitical criminal cases. (impact)
It established a joint naval system for suppressing the slave trade off the African coast. (impact)

15. Webster-Ashburton Treaty

17. Oregon Treaty
It was an agreement between Great Britain and the United States.
It was negotiated by James Buchanan and Richard Packanham.
It gave the U.S. claim to the Northwest area south of the 49th parallel. (impact)
Great Britain was able to keep Vancouver Island. (impact)

18. Oregon Treaty

20. Treaty of Guadalupe Hildalgo
Ended the war between the U.S. and Mexico in 1848; the U.S. acquired a large land area that today makes up the southwestern part of the U.S.

21. Treaty of Guadalupe Hildago

23. Gadsden Purchase
Purchased by the United States from Mexico in 1853 to complete the Transcontinental Railroad to the Pacific coast

24. Gadsden Purchase