Pre-Columbian rafts voyaged as far as Mexico and introduced metallurgy to the civilizations of that country. Some scholars and adventurers of the 20th and 21st century have asserted that the rafts and their crews journeyed thousands of miles across the Pacific to Polynesia, most notably Thor Heyerdahl who reached Polynesia on the Kon-Tiki raft. Several other people and groups have also built rafts based on prehistoric models and undertaken trans-Pacific voyages. Balsa is the Spanish word for raft. The use of rafts for commerce on the coasts of Peru and Ecuador, from northern Chile to southern Colombia, continued until the late 19th
Tuamotus was safely beached on Mangareva. In the story, London has the ship sail past Mangareva and all through the Tuamotus before beaching on Fakarava. The Tuamotus made headlines around the world in 1947, when Norwegian ethnographer Thor Heyerdahl, sailing from South America with a crew of five others, reached Raroia on his raft "Kon-Tiki". More recently the islands have been the subject of headlines as the site of French nuclear weapons testing on the atolls of Moruroa and Fangataufa. The Tuamotu archipelago consists of eight groups of small islands and atolls: Related island groups include: Tuamotus The Tuamotus, also referred