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The 1973 Las Balsas expedition was the first (and so far only) multiple-raft crossing of the Pacific Ocean in recent history. It is the longest-known raft voyage in history.〔(NPR—National Public Radio (U.S.): The 1973 Las Balsas expedition "Australia Celebrates A World-Record Ocean Crossing" ) . accessed 11.16.2013〕 The expedition was led by Spaniard Vital Alsar who, in 1970, led the La Balsa expedition, only on that occasion with one raft and three companions. The crossing was successful and, at the time, the longest raft voyage in history, until eclipsed in 1973 by Las Balsas. ==Expedition== The purpose of the 1973 expedition was three-fold: # to prove that the success of 1970 was no accident. # to test different currents in the sea, which Alsar maintained ancient mariners knew as modern humans know road maps. # to show that the original expeditions, directed perhaps toward trade or colonisation, may have consisted of small fleets of balsa rafts. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Las Balsas」の詳細全文を読む スポンサード リンク
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