Mexican War of Independence
The Mexican War of Independence () was an armed conflict, and the culmination of a political and social process which ended the rule of Spain in 1821 in the territory of New Spain. The war had its antecedent in Napoleon's French invasion of Spain in 1808; it extended from the Cry of Dolores by Father Miguel Hidalgo y Costilla on September 16, 1810, to the entrance of the Army of the Three Guarantees led by Agustín de Iturbide to Mexico City on September 27, 1821. September 16 is celebrated as Mexican Independence Day.
Republic of Yucatán
In 1810, the priest Miguel Hidalgo y Costilla issued the "Grito de Dolores" (in effect a call for independence) in Dolores near Guanajuato. An army of insurgents began an eleven-year war of independence that culminated in a Mexican victory over the viceroy's armies. In 1821 the Mexicans offered the crown of the new Mexican Empire to Ferdinand VII or to a member of the Spanish royal family that he would designate. After the refusal of the Spanish monarchy to recognize the independence of Mexico, the "" (Army of the Three Guarantees), led by Agustín de Iturbide and Vicente Guerrero, cut all political and economic dependence on Spain. The Plan of Iguala established Roman Catholicism as Mexico's religion and equality for all social and ethnic groups in the new empire. These goals were summarized as "Religion, Independence and Unity" ("Religión, Independencia y Unión").