During the Mexican struggle for independence from Spain (between 1810 and 1821), Spain was unable to maintain military control over Arizona lands.
Author: Dailey Arlene
U.S. Exploitation of the United States
The incorporation of Texas into U.S. territory in 1845 stimulated U.S. interests in all lands of the Southwest and California, including Arizona.
Spanish researchers
The first strangers seen in Arizona were probably soldiers of a Spanish expedition under the command of Cabeza de Vaca, who were shipwrecked in 1528.
Spanish settlements
It must be said at once that the Spaniards did little to develop Arizona. For them it was an arid, infertile land, also remote from the central government in Mexico and not promising many riches.