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.
Postage stamps and postal history of Mexico
Mexico declared independence from Spain on September 16, 1810. This resulted in the long Mexican War of Independence which ended in 1821, and which eventually led to the creation of the short-lived First Mexican Empire. Agustín de Iturbide was the first and only emperor. Two years later, he was deposed by the republican forces. In 1824, a republican constitution was adopted, creating the United Mexican States with Guadalupe Victoria as its first President.