Facts about Vinland Map

1. 05

   Anatase, a form of titanium dioxide found in the Vinland Map's ink, was identified by chemist Walter McCrone as evidence of post-medieval forgery.

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2. 04

   A prominent inscription on the Vinland Map refers to a companion named Bjarni and the explorer Leif Eriksson reaching a new land.

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3. 03

   Radiocarbon dating and chemical analysis of the ink have been central to arguments that the Vinland Map is a 20th-century forgery rather than a medieval document.

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4. 02

   Yale University acquired the Vinland Map in 1965 and announced it to the world as a potentially pre-Columbian cartographic document.

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5. 01

   The Vinland Map, purportedly a 15th-century chart showing Norse exploration of North America, has been the subject of intense scholarly debate over whether it is a modern forgery.

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