On this day in 1948, the modern-day explorer Thor Heyerdahl arrived in Polynesia having sailed on this balsa wood raft, the Kon-Tiki, all the way across the Pacific from Peru in an effort to prove his point that prehistoric native people in South America could have settled in Polynesia, bringing their culture with them.

His book, KON-TIKI, tells his amazing story. Check it out sometime.