Terry Powis

Cacao usage by the earliest Maya civilization.

The Maya archaeological site at Colha in northern Belize, Central America, has yielded several spouted ceramic vessels that contain residues from the preparation of food and beverages. Here we analyse dry residue samples by using high-performance liquid chromatography coupled to atmospheric-pressure chemical-ionization mass spectrometry, and show that chocolate (Theobroma cacao) was consumed by the Preclassic Maya as early as 600 bc, pushing back the earliest chemical evidence of cacao use by some 1,000 years. Our application of this new and highly sensitive analytical technique could be extended to the identification of other ancient foods and beverages.

Preclassic Round Structures of the Upper Belize River Valley

Round structures are considered a rarity in Maya architecture. Four late Middle Preclassic period (650-300 B.C.) round structures excavated at the Maya site of Cahal Pech demonstrate that this was a common architectural form for the Preclassic Maya of the upper Belize River Valley. These open platforms are described, and compared to similar forms in the Belize Valley and elsewhere. An interpretation of their significance is offered that uses information from artifacts, burials, and ethnohistory as well as analogy with round structures in other parts of the world. We suggest that these small round platforms were used for performance related to their role as burial or ancestor shrines.