Patrick Edward McGovern ca. 7000-6600 B.C. It was a mixed fermented beverage of rice, honey, and grape and/or hawthorn ("Crataegus pinnatifida" and "C. cuneata") fruit. The laboratory and collaborators began studying some of the most ancient chocolate from ancient Mesoamerica (ca. 1400-1100 B.C.) in 2004 Jars from Puerto Escondido in Honduras were in the shape of the cacao ("Theobroma cacao") pod or fruit, as if to advertise the contents as being a chocolate beverage. The fruit's sweet pulp contains about 15% sugar, which naturally ferments to a 5 to 7% alcoholic beverage. This beverage might have led to the domestication of the tree.
Chocolate was gradually transported by humans throughout South and Central America. Early forms of another genotype have also been found in what is now Venezuela. The scientific name, "Theobroma", means "food of the gods". The fruit, called a cacao pod, is ovoid, long and wide, ripening yellow to orange, and weighing about when ripe. Cacao trees are small, understory trees that need rich, well-drained soils. They naturally grow within 20° of either side of the equator because they need about 2000 mm of rainfall a year, and temperatures in the range of . Cacao trees cannot tolerate a temperature lower than