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Long before Europeans got here, cacao (Theobroma cacaomight have taken a trip far beyond its Central and South American homeland to reach Etowah, a significant Mississippian-period city in what is now Georgia.
An artist’s conception of Etowah, a Mississippian culture website situated on the banks of the Etowah River in Bartow County, Georgia. Image credit: Herb Roe/ Sci.News.
“For years archaeologists, historians, and epigraphers have actually understood that there is a long history of cacao usage in Central America beginning long before European contact,”stated University of South Carolina archaeologist Adam King and his associates.
“More just recently it was evidenced that cacao usage began a minimum of 5,000 years back in South America.”
“Clear proof that Indigenous individuals north of modern-day Mexico likewise took in cacao before the coming of Europeans has actually been a lot more challenging to discover.”
“Cacao is a plant that progressed and is adjusted just to tropical environments, so its existence in precontact contexts in the modern-day United States should have originated from contact with individuals in or near cacao-producing locations like Central and South America,” they included.
“Using chemical residues soaked up into ancient pottery containers, scientists argued that Indigenous individuals residing in Pueblo Bonito at the Ancestral Pueblo website of Chaco Canyon, New Mexico likewise took in cacao-based beverages.”
“They based this on the existence of what has actually been thought about the essential diagnostic substance of cacao, theobromine.”
“Their argument was boosted by extra lines of product proof of continual connections in between the occupants of Chaco Canyon and individuals in tropical areas of modern-day Mexico.”
A cacao tree(Theobroma cacaowith fruit pods in numerous phases of ripening. Image credit: Marco Vasquez.
In a brand-new research study, the scientists examined pottery sherds from the Etowah website, a significant Mississippian-period city near Cartersville, Georgia.
They recuperated fragmented ancient DNA from Theobroma cacao ingrained in the ceramic residue.
The sherds date to the 11th and 12th centuries CE, more than a century before Etowah reached its peak as one of the period’s most essential.
The findings develop on earlier chemical residue screening that had actually spotted substances related to cacao in the very same pottery, however those outcomes were unclear: the very same chemical markers likewise appear in yaupon holly, a caffeinated plant belonging to the area and utilized to brew a ritualistic drink referred to as black beverage.
By sequencing hereditary product instead of depending on chemical traces alone, the researchers had the ability to validate the DNA’s particular match to cacao instead of the native option.
The pottery was recuperated from big pits that when worked as fill for Etowah’s earliest earthen mound, contexts connected with common feasting.
The discovery suggests cacao usage contributed in the practices that assisted unify the neighborhood throughout the city’s developmental years.
It likewise contributes to a little however growing body of proof that trade networks dispersing cacao extended into the contemporary United States well before European contact.
“This discovery at Etowah asks us to expand our understanding of the networks that dispersed cacao throughout the Americas before European colonization,” the authors concluded.
The findings appear online in the journal PLoS ONE
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A. King et al2026. Cacao in the Mississippian World: Archaeogenomic proof for T. cacao usage at the Etowah Site, Georgia. PLoS One 21 (8 ): e0353607; doi: 10.1371/ journal.pone.0353607
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