After being claimed by the US and Britain, both countries agree to split the land in half at the 49 th parallel. Louisiana Purchase 1803 Florida Acquisitions Texas Annexation 1845 Oregon Country 1846 Mexican Cession 1848 Gadsden Purchase 1853

Through force and treaties the US gains control of this land from Spain. The US wanted clear trading access to the Mississippi River. Louisiana Purchase 1803 Florida Acquisitions Texas Annexation 1845 Oregon Country 1846 Mexican Cession 1848 Gadsden Purchase 1853

After 10 years of self-proclaimed independence from Mexico, leaders of this sovereign state and the US government agreed to annex the land to the US. Louisiana Purchase 1803 Florida Acquisitions Texas Annexation 1845 Oregon Country 1846 Mexican Cession 1848 Gadsden Purchase 1853

Bought for $10 million from Mexico, this land was needed for railroads. Louisiana Purchase 1803 Florida Acquisitions Texas Annexation 1845 Oregon Country 1846 Mexican Cession 1848 Gadsden Purchase 1853

Mexico ceded this land to the US following the Mexican-American War Louisiana Purchase 1803 Florida Acquisitions Texas Annexation 1845 Oregon Country 1846 Mexican Cession 1848 Gadsden Purchase 1853

Jefferson and Madison negotiated the purchase of this land from France. They originally intended to only purchase the port city of New Orleans. Louisiana Purchase 1803 Florida Acquisitions Texas Annexation 1845 Oregon Country 1846 Mexican Cession 1848 Gadsden Purchase 1853