Mexico Europeans. In 1521, the Spanish Empire conquered and colonized the territory from its politically powerful base in Mexico-Tenochtitlan (part of Mexico City), which was administered as the viceroyalty of New Spain. Three centuries later, the territory became a nation state following its recognition in 1821 after the colony's Mexican War of Independence. The post-independence period was tumultuous, characterized by economic inequality and many contrasting political changes. The Mexican–American War (1846–1848) led to a territorial cession of the extant northern territories to the United States. The Pastry War, the Franco-Mexican War, a civil war, two empires, and the Porfiriato occurred in
Mexican War of Independence rule until the Hidalgo revolt of 1810. Elites in Mexico City in the seventeenth century did force the removal of a reformist viceroy, the Marqués de Gelves, following an urban riot in 1624 fomented by those elites. He attempted to eliminate corrupt practices by creole elites as well as rein in the opulent displays of the clergy's power, but ecclesiastical authorities in conjunction with creole elites mobilized urban plebeians to oust the viceroy. The crowd was reported to shout, "Long live the King! Love live Christ! Death to bad government! Death to the heretic Lutheran [Viceroy Gelves]! Arrest the viceroy!"