It is now generally accepted that Leif Eiriksson sailed from Greenland across the Davis Strait and made landfalls on the North American continent almost a thousand years ago, but what happened in this vast area during the next five hundred years has long been a source of disagreement among scholars. Using new archaeological, scientific and documentary information, this book confronts head-on many of the unanswered questions about early exploration and colonisation along the shores of the Davis Strait. The author brings together two distinct fields of inquiry: the history of medieval Greenland and its connection with the Norse discovery of North America, and fifteenth-century British maritime history and pre-colonial voyages to North America, including that of John Cabot.