The research team used a dating technique called luminescence to determine the age of several artifacts found on the Caribbean island of Carriacou, in the West Indies, and discovered that the items dated back to between roughly 400 and 100 B.C.
These dates are well before Carriacou was colonized in approximately A.D. 400. Luminescence testing involves heating a substance and measuring the amount of light it gives off to determine how long ago it was last heated.
Heirlooms are portable objects that are inherited by family members and kept in circulation for generations, Fitzpatrick says, and are frequently part of important rituals. The objects tested for this study are ceramic inhaling bowls that were likely used for the ingestion of hallucinogenic substances. Fitzpatrick says the luminescence dates of the bowls, as well as analysis of the material from which the bowls were made, indicate that the artifacts "appear to have been transported to Carriacou when it was colonized – possibly hundreds of years after they were made."
Fitzpatrick, an assistant professor of anthropology at NC State, says scholars have long thought that the people who settled the Caribbean islands likely brought heirlooms with them – but says the bowls "are the first physical evidence we've found to support that claim."
Matt Shipman | EurekAlert!
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