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    Re: Proof of interaction between Polynesia and South America
    From: Peter Fogg
    Date: 2007 Jun 7, 09:37 +1000

    Fred Hebard wrote:
    > There is convincing biogeographical evidence that the Polynesians not
    > only sailed to South America, but sailed back.  It is that the sweet
    > potato (Ipomoea batatas) undoubtedly originated in South America, but
    > was cultivated across the entire Pacific, up to Japan, prior to the
    > advent of Europeans.  The botanical evidence that the sweet potato
    > originated in South America is very very strong.
    
    If Ipomoea batatas did come from South America and spread across the
    Pacific it may be evidence of westerly movement; the Thor Heyerdahl
    proposition.
    
    Convincing evidence of Polynesian voyaging to the east as far as South
    America has been lacking, but that has now changed thanks to this
    chicken.
    
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