History of Hispanic and Latino Americans in the United States
In 1821, Mexico gained independence from Spain, annexing the southwest of the present United States, including Arizona. As missions began to wither, Mexico began auctioning off more land, causing the Pimería Alta and the Apachería to shrink as territory expanded. In the meantime, American mountain men began to enter the region, looking to trap beavers for their pelts. In 1836, Texas declared independence from Mexico and claimed much of the territory in the northern lands of Mexico. When the United States annexed Texas in 1846 over the strong objections of the Mexican government, U.S. troops moved into disputed territory. The hostilities erupted in the Mexican–American War (1846–1848). The U.S. occupied Mexico City and forced the newly founded Mexican Republic to give up its northern half, including the later Arizona.
José María Morelos
On September 31, 1813, the Congress, with Morelos present, endorsed the "Sentiments of the Nation". This document declared Mexican independence from Spain, established the Roman Catholic religion and created the legislative, executive and judicial branches of government. It declared respect for property and confiscated the productions of the Spanish colonial government. It abolished slavery and racial social distinctions in favor of the title "American" for all native-born individuals. Torture, monopolies and the system of tributes were also abolished. Morelos was offered the title "Generalissimo" with the style of address "Your Highness", but he refused these and asked to be called "Siervo de la Nación" (Servant of the Nation). On November 6, 1813 the Congress declared independence.