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Fall of Tenochtitlan and conquest of the Aztec Empire

13 August 1521·Military & conflict·Central Mexico (New Spain)·
13 August 1521Date
Military & conflictCategory
28Empires active
Date
13 August 1521
Category
Military & conflict
Region
Central Mexico (New Spain)
Era
Early Modern
Significance

On 13 August 1521 the Mexica (Aztec) capital Tenochtitlan fell to a coalition of Spanish conquistadors under Hernán Cortés and tens of thousands of Indigenous allies, above all the Tlaxcalans.

After Cortés landed in 1519 and entered the city, relations collapsed into war; the Spanish were expelled in 1520 but returned to besiege Tenochtitlan for some ninety-three days. A devastating smallpox epidemic, introduced from the Old World, ravaged the defenders and killed much of the population before the final assault. The capture of the emperor Cuauhtémoc ended one of the Americas' greatest states and inaugurated the viceroyalty of New Spain, with Mexico City rising on the ruins of Tenochtitlan. The conquest demonstrated how European steel and firearms, exploitation of internal rivalries, and above all imported disease combined to topple a populous empire, and it opened central Mexico to Spanish colonisation, evangelisation and the extraction of its wealth.

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