2000 BCE - 1500 CE
Cocaine metabolites was found in mummies from Chile and Peru

Researchers analyzed the scalp hair of 8 Chilean mummies with dates ranging from 2,000 BC to 1,500 AD. Cocaine metabolites were found in the mummified remains. In addition, hair analysis of ancient Peruvian mummies dated to 1000 CE reveal the presence of two metabolites of cocaine.

Source: Stolberg, V. B. (2011). The use of coca. Journal of ethnicity in substance abuse

Drugs: Coca (cocaine)
Regions: South America, Chile, Peru