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.
Fredonian Rebellion
After winning independence in 1821, several of Spain's colonies in the New World joined together to create a new country, Mexico. The country divided itself into several states, and the area known as Mexican Texas became part of the border state Coahuila y Tejas. To assist in governing the large area, the state created several departments; all of Texas was included in the Department of Béxar. The department was further subdivided into municipalities, which were each governed by an alcalde, similar to a modern-day mayor. A large portion of East Texas, ranging from the Sabine to the Trinity Rivers and from the Gulf Coast to the Red River, became part of the municipality of Nacogdoches. Most residents of the municipality were Spanish-speaking families who had occupied their land for generations. An increasing number were English-speaking residents who had immigrated illegally during the Mexican War of Independence. Many of the immigrants were adventurers who had arrived as part of various military filibustering groups, which had attempted to create independent republics within Texas during Spanish rule.