USA HISTORY

Detailed explanation-1: -When Europeans began to explore and colonize other parts of the world, smallpox traveled with them. The native people of the Americas, including the Aztecs, were especially vulnerable to smallpox because they’d never been exposed to the virus and thus possessed no natural immunity.

Detailed explanation-2: -Smallpox spread among the indigenous people and crippled their ability to resist the Spanish. The disease devastated the Aztec people, greatly reducing their population and killing an estimated half of Tenochtitlán’s inhabitants.

Detailed explanation-3: -What factors led to the fall of the Aztecs? The Aztec empire fell after 1520 when the European invaders led by Hernán Cortés arrived with superior weapons and new diseases. In addition, the empire was based on force and so some indigenous groups helped the Spanish to defeat the Aztecs.

Detailed explanation-4: -The overthrow of the Aztec Empire by Cortez and his expedition rests on three factors: The fragility of that empire, the tactical advantages of Spanish technology, and smallpox.

Detailed explanation-5: -Cortés’s army besieged Tenochtitlán for 93 days, and a combination of superior weaponry and a devastating smallpox outbreak enabled the Spanish to conquer the city. Cortés’s victory destroyed the Aztec empire, and the Spanish began to consolidate control over what became the colony of New Spain.