About state

Marcos De Niza first explored Arizona  in the 1500's . The Spanish founded small towns in the area of Tucson named precidious .

When Mexico gained independence from spain in 1821 Arizona became part of upper Mexico .During the Mexican American war in 1847 the United States wanted to have the Far north of Mexico which is now Arizona and New Mexico.The Treaty of Guadalupe Hidalgo specified that  $15 million U.S. dollars be paid to the Republic of Mexico For the territory.

Arizona later became a state in February 14, 1862.