History of North America was declared in 1810 by Miguel Hidalgo, starting the "Mexican War of Independence". In 1813, José María Morelos and the Congress of Anáhuac signed the Solemn Act of the Declaration of Independence of Northern America, the first legal document where the separation of the New Spain with respect to Spain is proclaimed. Spain finally recognized Mexico's independence in 1821. From the time of independence of the United States, that country expanded rapidly to the west, acquiring the massive Louisiana territory in 1803. Between 1810 and 1811 a Native confederacy under Tecumseh fought unsuccessfully to keep the Americans from pushing them
Antonio López de Santa Anna enough to send him to school. In June 1810, the 16-year-old Santa Anna joined the Fijo de Veracruz infantry regiment as a cadet against the wishes of his parents, who wanted him to pursue a career in commerce. In September 1810, secular cleric Miguel Hidalgo y Costilla rebelled against Spanish rule, sparking a spontaneous mass movement in Mexico's rich agricultural area, the Bajío. The Mexican War of Independence was to last until 1821, and Santa Anna, like most creole military men, fought for the crown against the mixed-raced insurgents for independence. Santa Anna's commanding officer was José Joaquín de Arredondo,