The Mexican Frontier, 1821–1846 published by other historians. This work was supplemented by additional primary materials which he discovered in the archives that allowed him to delve further into certain areas. "The Mexican Frontier" examines the southwestern United States, specifically the areas now known as Arizona, California, New Mexico, and Texas, in the twenty-five years between Mexico's independence from Spain and the beginning of the Mexican–American War. This resulted in the transfer of control of the border areas to the United States. In the early days of the Republic of Mexico, these areas comprised its northern border, including the territories of Alta California and
Mexican War of Independence go to war happily! God wants us to finish off the Spaniards! We do not care if we die without confession! Is this not our land?" The viceroy attempted to address the apparent cause of the riot, higher maize prices that affected the urban poor. But the 1692 riot "represented class warfare that put Spanish authority at risk. Punishment was swift and brutal, and no further riots in the capital challenged the Pax Hispanica." The various indigenous rebellions in the colonial era were often to throw off crown rule, but they were not an independence movement as such. However, during