Genetic analysis of their modern descendants shows that people from the Pacific Islands and South America interacted long before Europeans arrived.
A provocative new study argues Polynesians and Native Americans made contact some 800 years ago. That date would place their first meeting before the arrival of Europeans in the Americas and before the settlement of Easter Island (Rapa Nui), which has been suggested as the site of such an initial encounter.
Researchers, published in Nature, sampled genes of modern peoples living across the Pacific and along the South American coast and the results suggest that voyages between eastern Polynesia and the Americas happened around the year 1200, resulting in a mixture of those populations in the remote South Marquesas archipelago. It remains a mystery whether Polynesians, Native Americans, or both peoples undertook the long journeys that would have led them together. The findings could mean that South Americans, hailing from what’s now coastal Ecuador or Columbia, ventured to East Polynesia.
“It is fascinating new evidence,” says Pontus Skoglund, who leads the ancient genomics lab at the Francis Crick Institute and wasn’t involved in the research. Skoglund was particularly intrigued by the evidence that Native Americans would’ve encountered Polynesians before they encountered Europeans, contrary to what some previous studies have shown. “This suggests that the Native American ancestry is not due to events in more recent colonial history where trans-Pacific travel was documented.”
If Native Americans had reached these remote islands by around 1200 they likely did so by following the prevailing currents and winds. In 1947, explorer Thor Heyerdahl famously demonstrated that it was possible to travel the Pacific by drifting on winds and currents on a raft when his famed Kon-Tiki journeyed more than 4,300 miles from South America to Raroia Atoll. Those islands lie in the same region that the genetic study suggests as the likely point of contact between Polynesian and Native American peoples.
Paul Wallin, an archaeologist at Uppsala University, Sweden who wasn’t involved in the research, thinks this study may confirm a Native South American contact into the Pacific. “ the same area DNA studies of sweet potato have indicated, this early mix may explain the existence of sweet potato in East Polynesia,” Wallin says. The date is so early that the Native South Americans may have come to the South Marquesas just before the Polynesians did, he adds.
David Burley, an archaeologist at Simon Fraser University not involved in the study, finds the explanation of Polynesians visiting America far more likely. “A North American group from Colombia making it to the southern Marquesas and interbreeding with Polynesians seems a stretch,” he says. “Polynesian seafarers had well developed maritime technologies and were quite capable of reaching the Americas. Not sure that is at all the case for Colombia.”
https://www.smithsonianmag.com/science-nature/native-americans-polynesians-meet-180975269/