The Gadsden Purchase of 1853, named for ambassador James Gadsden, was for a strip of Mexican land which the US bought in order to build a transcontinental railroad through it and to settle some of the border issues between the US and Mexico.
It was known as the Gadsden Purchase (1853), and it included present-day New Mexico and Arizona, south of the Gila River.
You mean before the Mexican-American War? That was the Nueces Strip.
No, they are separate states within the Union.
The Louisiana Territory which is most often called the Louisiana Purchase.
The land between the Appalachian Mountains and the Mississippi river was called the Louisiana Purchase after the Revolutionary War. The Louisiana Purchase was 530,000,000 acres of territory in North America that the United States purchased from France in 1803 for $15 million.
Utah Territory wasn't formed from any state. The land was purchased from Mexico and simply called "Mexican Territory" previously.
US-Mexico border
Gadsden Purchase. It was done largely to get land needed for a southern railroad line.
It was during the Mexican American war during 1846 and 1848. Mexico believed that Texas was apart of their territory and the US believed it part of theirs. As you can image conflict broke out about the entire situation. This led to the Beginning of the war. America won the war and the Treaty of Guadalupe Hidalgo was the result America winning. According to the treaty Mexico had to not only give up Texas but also the "Mexican Territory" (now known as California, New Mexico, Arizona). Sources: Advanced Placement (AP) United States history Note: This is a general overview (way more things happen in between those years)
buffer state
the french came here first and claimed the land called the Louisianna Territory and us americans bought it from them.
The Mexican Cession.