The treaty was the Gadsden Purchase, the territory is La Mesilla, which comprises a 29,670-square-mile (76,800 square kilometer) region south of the Gila River and west of the Rio Grande.
Only southern New Mexico and Arizona qualify as such.
Portions of Arizona and New Mexico originate with the Gadsden Purchase.
It is when the US bought the land on the southern tips of New Mexico and Arizona from Mexico, right after the Mexican War in the year 1853. It was bought for railroads.
Gadsden purchase
I Dont Know...Your tell me.....:/
The Tohono O'odham people got pushed out of Mexico when the USA(United States of America) won the war between them and Mexico. The USA bought all their land. They had to move into Arizona but some of them are still in Mexico.
The United States purchased the Gadsden Purchase from Mexico in 1854 for $10 million. This territory, which is located in present-day southern Arizona and New Mexico, was acquired to facilitate the construction of a southern transcontinental railroad. The purchase aimed to resolve border disputes and improve relations between the two countries following the Mexican-American War.
It was bought so that America could further their Railroads
The Gadsen Purchase (1853), which included southern New Mexico and Arizona.
Gadsden Purchase
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.
Gadsden Purchase (1853)