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Louisiana Purchase
In 1803, the U.S. purchased 828,000 square miles of land from the french for 50 million francs (11,250,000$) or four U.S. cents an acre. -
British Cession (Treaty of 1818)
It was signed between the U.S. and the United Kingdom. It resolved boundary lines between the two. Britian ceded its land south of the 49th parallel and west to the Rocly Mountains. They kept land above Montana in present day Canada -
Adams-Onis Purchase
In this treaty with spain, the U.S. gained west Florida and set a boundary between the U.S. and New Spain. -
Texas Annexation
After gaining their independence from The Republic of Mexico, Texas wanted to be added into the US. The US approved the Annexation of Texas and then became a state. -
Mexican Cession
In the Treaty of Guadalupe Hidalgo, Mexico ceded much of the present day southwestern U.S. to theU.S. -
Gadsden Purchase
in 1854, the U.S. purchased 29,640 square miles from Mexico in a treaty signed by James Gadsden in present day New Mexico and Arizona. It costs us 10 million at the time. -
Oregon Territory
with the signing of the Oregon Treaty, the British gained sole possession of the land north of the 49th parallel and all of Vancouver Island, with the United States receiving the territory south of that line, oregon
