On May 17, 1970, Norwegian ethnologist Thor Heyerdahl and a multinational crew set out from Morocco across the Atlantic Ocean in Ra II, a papyrus sailing craft modeled after ancient Egyptian sailing vessels. Heyerdahl was attempting to prove his theory that Mediterranean civilizations sailed to America in ancient times and exchanged cultures with the people of Central and South America. The Ra II crossed the 4,000 miles of ocean to Barbados in 57 days.
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