The Mexican Frontier, 1821–1846 The Mexican Frontier, 1821–1846 The Mexican Frontier, 1821–1846: The American Southwest Under Mexico by historian David J. Weber is a history of the part of Mexico's north and northwest that became part of the United States after the Mexican–American War. The book examines territories on the northern frontier of Mexico, including what is now Arizona, California, New Mexico, and Texas, in the twenty-five years after Mexico gained its independence from Spain. Weber emphasizes the role of Mexicans in the region through this period of transition, particularly before and during the Texas war of independence, as well as exploring the region
Mexican real ¼, ½, 1, 2, 4 and 8 reales, with gold coins for ½, 1, 2, 4 and 8 escudos. Between 1814 and 1821, copper coins were also issued for ⅛, ¼ and tlaco. During the Mexican War of Independence (1810-1821), numerous mints operated, providing coins for both the supporters and opponents of the Spanish crown. The Royalist issued coins at mints in Chihuahua, Durango, Guadalajara, Guanajuato, Nueva Viscaya, Oaxaca, Real del Catorce, San Fernando de Bexar, San Luis Potosí, Sombrerete, Valladolid Michoacán and Zacatecas. Most Royalist issues were similar in style to the earlier colonial issues from the Mexico City