Where Did the Polynesians Really Come From?
Oceania was the last region to be settled by humans and the last part of Oceania to be settled by humans was Polynesia. Polynesians are famous for their voyages to remote islands in distant parts of the Pacific. Using outrigger canoes, they founded a society across islands stretching in a triangle from the Hawaiian Islands to Easter Island to New Zealand, that was reasonably well connected by trade, language, culture, and religion, for being distributed over such a large area. One major question today is where did the Polynesians originally come from? Several theories have been proposed over the years, but one which is gaining ground is that the Polynesians originated from Taiwan, parts of Papua New Guinea, and Southeast Asia.
Could the Polynesians Have Origins in South America?
One early theory of the origin of Polynesians is that they came from South America and sailed west eventually reaching the Polynesian triangle. This was proposed by the archaeologist, writer, and explorer Thor Heyerdahl, who even constructed a Polynesian outrigger canoe and, with a team, sailed it west of Easter Island from the South American coast. This demonstrated the feasibility of using a primitive craft such as an outrigger canoe to cross the Pacific.
Girls Carrying a Canoe in Samoa by John La Farge. ( Public Domain ) Polynesian outrigger canoes may have been used to cross the Pacific.
The thing to remember about experimental archaeology is that just because something could have theoretically been done doesn’t mean that it actually happened that way. Although it is plausible that Polynesia was settled by ancient South Americans, all the genetic, linguistic, and ethnographic evidence points toward a predominantly southeast Asian origin.
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The Express Train or Slow Boat to Polynesian Origins
The two main theories today are called the Express Train Hypothesis and the Slow Boat Hypothesis. The Express Train Hypothesis says that Polynesians come originally from Taiwan by way of the Philippines and Melanesia. According to this view, Polynesians are mainly a part of a migration wave that came out of Taiwan. The western part of Polynesia was settled between 3000 and 1000 BC by people from Taiwan via the Philippines as well as parts of New Guinea. Eastern Polynesia was settled beginning around 900 AD as Polynesian voyagers began to set out from Tonga and Samoa and other islands of western Polynesia to settle the Hawaiian Islands, New Zealand, and Easter Island, among other islands of the region.
Nuku Island in the southern part of the Vavaʻu Islands, Tonga. (Stefan Heinrich/ CC BY SA 3.0 ) Western Polynesia, including Tonga, was settled sometimes between 3000-1000 years ago.
According to the Slow Boat Hypothesis, the ancestors of the Polynesians are of Austronesian descent and still have a connection to Taiwan, but the ancestors of modern Polynesians spent several centuries intermarrying with people of Papuan and Indonesian lineage before setting out to Polynesia.
The first view is supported by linguistic and ethnographic data, but there is genetic evidence for the second hypothesis. Genetic studies have shown, for example, that a significant percentage of the Polynesian population has y-chromosomal DNA haplogroups coming from Papua New Guinea while most of the mtDNA comes from haplogroups in Taiwan and Southeast Asia. This suggests some degree of intermarriage between Polynesians and other Austronesian groups as well as non-Austronesian groups. Another possible line of evidence for this hypothesis comes from the fact that there is a gap in the language evolution of Polynesian Austronesian languages. Polynesian languages have features that no other Austronesian languages possess. This could be because of interaction with Papuan and Indonesian populations.
The face of Mana, a Lapita woman whose face was reconstructed using a model of her skull which was excavated from an early human settlement at Naitabale in Fiji. ( realhistoryww.com) Genetic studies have shown that most mtDNA in Polynesia comes from Taiwan and Southeast Asia.
Amerindian Connections to Early Polynesians?
It is even possible that Thor Heyerdahl may have been partly right about an Amerindian connection. Genetic studies of the Rapa Nui of Easter Island reveal a small percentage of Native American ancestry (8%). To be fair, this study also revealed 16% European ancestry for the Rapa Nui. However, the genes and haplogroups associated with European descent are much less degraded due to recombination than those associated with Native American descent, making it clear that European haplogroups are from 19th century Europeans intermarrying with the natives. The genes associated with Native American ancestry are much older, suggesting a date closer to the 13th-15th centuries AD for these elements entering the genes of the Rapa Nui.