I came across this article a few months ago citing evidence of Polynesian contact with South America about a thousand years ago. I began reading about the South Pacific islands and the people who populate them. The settlement of the Polynesian triangle is an accomplishment enormously underrated in human history. It is truly one of the greatest feats our species has performed.
Sea People by Christina Thompson is an informative read on the subject. It basically chronicles the European interaction with Polynesia. For centuries Europeans could not understand how or accept that people reached these islands in wooden canoes without a writing system or metal tools. No maps, no compasses, no Western navigation techniques. The main conclusion of the story is that the timeline and process of the exploration is pretty much exactly what the Polynesian people had been saying it was all along.
A Tahitian man named Tupaia embodies the brilliance of Polynesian knowledge. He guided Captain Cook around the region after they met in Tahiti. Tupaia was exceptional, a tahu'a, meaning "a master, expert, or authority." He was proficient in "cosmology, politics, history, medicine, geography, astronomy, meteorology, and navigation," even picking up painting and cartography despite never touching a pen or paper before meeting Cook. All his expertise was saved and transmitted orally except a few documents he created on the Endeavour, Cook's ship. The man was adventurous and confident enough to join an expedition of recently-met foreigners heading to unknown lands for an unspecified period of time. He's the type of historical figure you wish to share a meal and conversation with.