In the Vinland Map we see the only known cartographic delineation of American lands before the discoveries of Columbus and Cabot. So far as the evidence goes, this unique record remained unnoticed by geographical writers, by projectors and explorers, and by cartographers. We may still ask whether, more positively than all the hints of western land accumulated in the fifteenth-century maps and texts, it served in some way to bridge “the gap between two epochs of Atlantic discovery.”