Norwegian scientist Thor Heyerdahl and five companions sail the Kon-Tiki, raft from Peru to the islands east of Tahiti. Heyerdahl was interested in demonstrating the possibility that ancient people from the Americas could have colonized Polynesia; to do so, he constructed the raft from locally available balsa logs at Callao, Peru, and in three and a half months traversed some 4,300 miles (6,900 km) of ocean. The Kon-Tiki has been preserved in a museum in Oslo, Norway. More
Image Source: Nasjonalbiblioteket from Norway, CC BY 2.0, via Wikimedia Commons