http://www.sciencemag.org/news/2018/10/world-s-oldest-chocolate-was-made-5300-years-ago-south-american-rainforest

Ecuador may be the new home of the world’s oldest chocolate.

Our love affair with chocolate is much older than we thought, and newly discovered traces of cocoa on ancient pots suggest it started in the rainforests of what is now Ecuador some 5300 years ago. That’s nearly 1500 years older than earlier evidence, and it shifts the nexus of cocoa production from Central America to the upper Amazon.