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Louisiana Purchase
In 1803 the United States had bought the Louisiana from Spain. Spain sold it to the U.S. because they were in a war with Britain and didn't want britain to gain that territory -
Florida
In 1818 president Thomas Jefferson sent General Andrew Jackson into Georgia to stop the raids by seminole indians who had been inhabitors of Florida. But against orders after stopping the raids he went into Florida and took control later in 1819 Spain would forfeit the territory to the U.S. -
Texas Annexation
Texas before it's enterance into the United states Union it was a land owned by Mexico but in April 1836 Texas had won it's independence frommexico led by Sam Houston. -
Oregon Country
The U.S. and Britain make a agreement where the U.s. would get Oregon and Britain would recieve the northern territory and Russia would have what today is considered to be Alaska. -
The Mexican American War
In 1846 the U.S. and Mexico went to war over the annexation of Texas which the Mexican Goverment did not appreciate and took it as a act of war -
Treaty of Guadelupe Hidalgo
In 1848 the Mexican army had surrendered to the U.S. army in the Treaty of Guadelupe HIdalgo. In result the U.S. had recieved New Mexico,Arizona and parts of Utah, Idaho, Nevada and California; This could also be named the Mexican Cession -
The Gadsen Purchase
In 1853, James Gadsden arranged the purchase of a strip of land just south of the Mexican Cession for $10 million. Railroad builders wanted this land because it was relatively flat and could serve as a good railroad route. The acquisition of this land, known as the Gadsden Purchase, created the present-day border of the southwestern United States with Mexico
