On September 16, 1810, Miguel Hidalgo y Costilla, a parish priest from the town of Dolores, issued a call to rebellion. In response, rebel leader Vicente Guerrero and defected royalist general Agustín de Itúrbide collaborated to gain Mexico's independence from Spain in 1821.
Mexico is a federal presidential representative democratic republic, where the President is both head of state and head of government. The current government of Mexico is guided by the 1917 constitution. Mexico's government has three branches, namely the executive, legislative, and judiciary.
Almost all of Mexico is on the North American Plate, with small parts of the Baja California Peninsula in the northwest on the Pacific and Cocos Plates. Some geographers include the portion east of the Isthmus of Tehuantepec including the Yucatán Peninsula within North America.