Recent research has shown that Yale's "15th century" Vinland map is a 20th century fake. The British Museum already had its doubts when it was offered for sale in the 60s. https://news.artnet.com/art-world/yale-proves-vinland-map-fake-2016654?utm_content=from_artnetnews2&utm_source=Sailthru&utm_medium=email&utm_campaign=EUR 7 October AM&utm_term=EUR Daily Newsletter [MORNING]
Again? Seems to me this map was originally taken as real, then proved to be fake, then proved to be real, now proved to be fake again?
Well, with the Turin Shroud, the thing is it still could be seen as a DaVinci. From the article, I take it the Vinland map MIGHT have been an honest copy, later construed to be the real deal.