Mexican Cession Mexican Cession, with considerable local autonomy punctuated by several revolts and few troops sent from central Mexico, in the period from 1821–22 after independence from Spain up through 1846 when U.S. military forces seized control of California and New Mexico on the outbreak of the Mexican–American War. The northern boundary of the 42nd parallel north was set by the Adams–Onís Treaty signed by the United States and Spain in 1821 and ratified by Mexico in 1831. The eastern boundary of the Mexican Cession was the Texas claim at the Rio Grande and extending north from the headwaters of the Jojo
Celebration of Mexican political anniversaries in 2010 Sentiments of the Nation Route, named after the eponymous document by José María Morelos y Pavón, follows his campaigns through the states of Michoacán, Guerrero, Oaxaca, Morelos, Mexico State, Puebla, Veracruz and Chiapas. The Route of the Three Guarantees maps out the campaigns fought by Agustín de Iturbide, who brought the War for Independence to a close in 1821. The runs from Iguala, Guerrero, to Mexico City. Routes following the major events of the Mexican Revolution include the Democracy Route, mostly outlining the road taken by Francisco I. Madero from Ciudad Juárez to Mexico City after being elected president in