Raymond Clemens, Curator of Early Books and Manuscripts at Yale's Beinecke Library, considers that the latest historical and scientific research proves "beyond a doubt" that the Vinland map "was a forgery, not a medieval product as it claimed to be." In a March 2019 article, Clemens highlights the fact that "historical investigations by John Paul Floyd have revealed that the Vinland Map is actually based not on Bianco’s 1436 map, but on a printed facsimile map made in 1782. Floyd discovered this by noting mistakes in the 1782 map that were replicated on the Vinland map, but could be found nowhere else." Furthermore, the map has been studied at the Beinecke Library using new technology. "In the case of the Vinland map we were able to prove... map was clearly a 20th century fake."