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Nature 418, 574 (8 August 2002) | doi:10.1038/418574a
Ink analysis raises storm over Viking map
John Whitfield & Rex Dalton
Scientists are locking horns over a Viking map of America. One group claims to have evidence that the document is a fake, but another says that the parchment on which it is drawn predates Christopher Columbus's 1492 discovery of the New World.
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