Polynesia of the plant in the Cook Islands have been radiocarbon-dated to 1000, and current thinking is that it was brought to central Polynesia c. 700 and spread across Polynesia from there, possibly by Polynesians who had traveled to South America and back. Thor Heyerdahl proposed in the mid-20th century that the Polynesians had migrated from the northwest coast of Canada by large whale-hunting dugouts, and from South America on balsa-log boats. Many anthropologists have criticised Heyerdahl's theory, including Wade Davis in his book "The Wayfinders". Davis says that Heyerdahl "ignored the overwhelming body of linguistic, ethnographic, and ethnobotanical evidence, augmented
Kon-Tiki (2012 film) The film was also nominated for a Golden Globe Award for Best Foreign Language Film at the 70th Golden Globe Awards. It is the first time a Norwegian film has been nominated for both an Oscar and a Golden Globe. The film is the dramatized story of Thor Heyerdahl and his Kon-Tiki expedition of 1947. While the prevailing theories of the time held that Polynesia had been settled by peoples migrating from the west, Heyerdahl, an experimental ethnographer and adventurer, sets out to prove his theory that people from South America settled the islands in pre-Columbian times. Noting similarities between