US Expansion

Treaty of Paris

Apr 1, 1783

This allowed the US all the land east on the Mississippi. (Date not exact)

Louisiana Purchase

Apr 1, 1803

This territorial aquisition is when Thomas Jefferson bought a lot of land west of the Mississippi from France. ( DAte not exact)

Florida Gained

Apr 1, 1819

The Spansih ceded Florida to the US in 1819. (Date not exact)

Annexation of Mexico

Apr 1, 1845

After lots of argument and discussion Congress finally decided to annex texas as a US state. (Date not exact)

Oregon Country Gained

Apr 1, 1846

Oregon Country was gained by the US in 1846 by the British. (Date not exact)

Mexican Cession

Apr 1, 1848

After the Mexican American War, Mexico decided to cede a large part of the now southwest US.

Gadsden Purchase

Apr 1, 1856

After lots of heated discussion and negotiations, the US just decided to buy all the remaining land north of the Rio Grande.