The cacao tree is native to the Amazon rainforest. [8] Evidence of cacao domestication exists as early as circa 3300 BC in the Amazon in southeast Ecuador by the Mayo-Chinchipe culture, before it was introduced to Mesoamerica. [9] This emerged from research into residue in ceramics, which revealed starch grains specific to the cacao tree, residue of theobromine (a compound found in high levels ... More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.