The Role of Smallpox in the Spanish Conquest of the Aztecs 500 Years Ago

Hernán Cortés owed his conquest of the Aztecs to his expedition’s unknown, unseen secret weapon: the smallpox virus. Disease epidemics can set the course of human history. Recent outbreaks in the U.S. have drawn attention to the dangers of measles. The Democratic Republic of Congo is fighting a deadly outbreak of Ebola that has killed hundreds. Epidemics are[…]