Many assumed the Aztecs were one of many Central American groups to be wiped out by European diseases like smallpox. However, DNA testing has unearthed new evidence about what really killed 80% of ...

Smallpox was introduced to the Americas by European colonisers in the 1400s. It was responsible for the fall of the Aztec and Incan empires, and killed up to 90 per cent of the Northern Native ...