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
Eduard Ingris Eduard Ingris Eduard Ingriš () (February 11, 1905 – January 11, 1991) was a Czech-American composer, photographer, conductor and adventurer. Born in Zlonice in Bohemia (then-Austro-Hungary, now Czech Republic), Ingriš left Czechoslovakia in 1947 for South America, living in Brazil and Peru. In 1955 and 1959 he organized the Kantuta and Kantuta II raft voyages and sailed across the Pacific, in similar style to Thor Heyerdahl's Kon-tiki. While Ingriš' travels spanned the globe and his talents led him through several careers, his first love was always music. He wrote the first arrangement of the famous "Beer Barrel Polka", after Jaromír