Cacao out of the Americas: an Amazonian tree, a Mesoamerican currency, and the price of the first chocolate boom
Archaeogenomics has moved cacao's homeland: the tree originated in the upper Amazon and was already being carried and crossed across South America five thousand years ago, so Mesoamerica received it rather than gave it. What Mesoamerica made of it was money, reckoned in cargas of twenty-four thousand beans; what the Spanish Atlantic added was a hot drink, a European market, and a price rise a Franciscan blamed on the emptying of the growing country.
Why this wins its question: The standard chocolate-history page still calls Mesoamerica the home of cacao and treats the Spanish arrival as the start of the story. This object puts the two corrections that matter next to each other from the sources themselves: archaeogenomics placing the origin in the upper Amazon with continental, human-driven dispersal five thousand years before Columbus, and a colonial chronicler's own page giving the currency in xiquipiles of eight thousand beans, the agronomy down to the Nahuatl name of the shade tree, and a price that had risen more than tenfold — for which his first stated reason is that the growing country was "ià casi sin Gente". Very little English writing on chocolate carries the depopulation and the boom in the same quotation, or admits that the price series is one friar's unsourced figure.
Claims
Every assertion below is bound to registered sources and carries its own confidence. Weight them; do not treat the page as uniformly authoritative.
Cacao originated in the humid tropics of South America, with the hotspots of genetic diversity in the upper Amazon basin near the frontier between Colombia and Ecuador — not in Mesoamerica. The 2024 archaeogenomic study states the correction plainly: Mesoamerica and Central America are considered the homeland of cacao in popular culture and by early crop scientists, "even though it was introduced to the region through past human-mediated dispersal".
Cacao's long-distance movement was pre-Columbian and human-driven. Analysis of ceramic residues from a large sample of pre-Columbian cultures of South and Central America shows the widespread use of cacao in South America outside its native Amazonian range extending back some five thousand years, and strong genetic mixing between geographically distant cacao populations as early as the middle Holocene, driven by humans and favouring the tree's adaptation to new environments. Use and domestication traces in the southern Ecuadorian Amazon reach back 5,300 years BP.
In New Spain cacao was money, and the Spanish record says so without qualification. Torquemada, opening his chapter on commutation, writes "En esta Nueva-España tenian el Cacao por dinero, que es vn grano como Almendra ... y en el Pirù cierta Ierva, que llaman Coca: pero lo mas comun, entre todos estos, era trocar, vnas cosas, por otras".
The currency had units, and they were indigenous ones the Spanish adopted rather than replaced. Cacao "corre por Moneda en toda esta Tierra generalmente; cuentase por cargas, y es vna carga veinte y quatro mil Almendras, o Cacaos; entre los Indios tiene esta carga tres numeros, que son tres Xiquipiles, que cada Xiquipil tiene ocho mil granos".
The same page carries a price series across a century, and it rises by more than tenfold. At the beginning of the conquest a carga was worth four or five pesos where it was grown and ten or twelve at Mexico where it was consumed; later fifteen in its own country and twenty-five to thirty at Mexico; "pero en los Tiempos presentes no baja de cinquenta, y Años hai, que pasa de sesenta Pesos". The figures are the chronicler's own report and he gives no source for them, which is why this claim sits below the others.
He names two causes for the rise, and the first is demographic catastrophe. "La vna, que la Tierra donde se dà, está ià casi sin Gente, y por esta causa no hai tantas Huertas, ni cultura de ello" — the cacao country had been emptied of the people who grew the crop. The boom and the collapse of the growing population are printed in the same sentence, by a chronicler of the order that ran the missions.
The second cause is the transfer itself, and it is the earliest part of the European chocolate story stated as a change in consumption: "no solo los Indios lo beben, cuia bebida fria vsaron siempre, en su Gentilidad; pero los Españoles se han dado à beberlo caliente, que llaman Chocolate, y aun se lleva à España por mui grande regalo". A cold indigenous drink became a hot Spanish one and then an export.
What the Spanish sources transmit about the crop is indigenous agronomy recorded, not invented. Torquemada describes a tree no more than five varas high, propagated from its own fruit in seedbeds and transplanted "como la Oliva" in ordered rows; beside each young plant "ponen vna Vara de otro Arbol mui jugoso, que llaman Cacahuanantli, que quiere decir: Madre del Cacao", which strikes root and shades the seedling from the summer sun; the pod is shaped like a small melon and "comunmente tiene cada maçorca treinta granos"; the tree fruits at three years, bears twice a year — before Christmas and around midsummer, the second crop the larger — and yields little after twenty, the orchards being renewed. The technique, the shade tree and its Nahuatl name are Mesoamerican practice written down in Spanish.
Putting the two bodies of evidence together, the achievement is American and the Spanish contribution is a narrower one: the tree, its domestication, its transplantation across a continent and its use as currency are the work of Amazonian and Mesoamerican peoples over millennia, while what the Spanish Atlantic added was written description, a European market and the carriage of the crop beyond the Americas. The division of credit is this object's reading of the two sources rather than a statement either of them makes, and is stated with that reservation.
Both witnesses have limits worth naming. The 1723 sheets are a reprint of a 1615 work by a Franciscan compiling earlier accounts, so his "Tiempos presentes" are those of the early seventeenth century and his price figures are unsourced; the genomic study reconstructs dispersal and admixture from residues and modern population structure, and its authors present the resulting history as a revision open to further evidence rather than a settled chronology.