Plant material on obsidian blades on Rapa Nui suggests settlers there visited South America and returned

A connection between Rapa Nui (Easter Island) and South America has long been demonstrated by the alternative archaeology crowd, and met with derision by the mainstream. At last here we have more evidence that “we were right”(again…) MH

Bob Yirka
Thu, 21 Mar 2024

© Andreas Mieth, Uni Kiel

Easter Island in the south-east Pacific was probably discovered by Polynesians around the 8th or 9th century AD. The island is famous for its unique stone sculptures called moai.

A team of archaeologists affiliated with several institutions in Chile reports evidence that early settlers on the island of Rapa Nui sailed to South America, interacted with people living there and then returned. In their study, published in PLOS ONE, the group analyzed plant material found on obsidian blades made by the early settlers.

Prior research has shown that there were people living on Rapa Nui during the years 1000 to 1300, though their origin is still not known — those early settlers are most famous for their giant stone carvings of human figures.

In this new study, the research team found evidence that some of the settlers sailed all the way to the coast of South America and back. Such a voyage would have entailed sailing one way for 3,700 kilometers and likely would have taken anywhere from one to two months, depending on the weather.

Prior research has found that the oral history of the Rapu Nui people includes reports of at least one trip made by the early settlers to South America. In this new effort, the research team followed up on such reports by digging up and studying obsidian blades at a site called Anakena, the earliest known settlement on the island. The researchers found very small amounts of plant material on the blades, evidence that they were used to process plant-based food.

An analysis of the plant material showed evidence of cassava, breadfruit, purple yam, taro, achira, ginger and the Tahitian apple. Of those, the Tahitian apple and breadfruit stood out because neither grows naturally on Rapa Nui — and ginger had never been seen before in remote parts of Oceania.

Cassava, sweet potato and achira stood out for a different reason — all three are South American foods. They also noted that the sweet potato remnants were found in the deepest parts of the dig site, suggesting that they arrived on the island during the early years of the settlement.

The researchers conclude that early Rapu Nui settlers ventured to South America and back, perhaps several times. They further suggest that some of the food they brought back with them was planted and used to grow crops over the ensuing years.

More information: Paloma Berenguer et al, Identification of breadfruit (Artocarpus altilis) and South American crops introduced during early settlement of Rapa Nui (Easter Island), as revealed through starch analysis, PLOS ONE (2024). DOI: 10.1371/journal.pone.0298896

Journal information: PLoS ONE


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Martin Harris

I have a lovely partner and 3 very active youngsters. We live in the earthquake ravaged Eastern Suburbs of Christchurch, New Zealand. I began commenting/posting on Uncensored back in early 2012 looking for discussion and answers on the cause and agendas relating to our quakes. I have always maintained an interest in ancient mysteries, UFOs, hidden agendas, geoengineering and secret societies and keep a close eye on current world events. Since 2013 I have been an active member of community, being granted admin status and publishing many blogs and discussion threads. At this time I'm now helping out with admin and moderation duties here at Uncensored where my online "life" began.

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