Orkney and Shetland, the true extent of the Viking discovery and colonisation of the eastern seaboard of America is fully examined, taking into account the new archaeological, linguistic and DNA evidence which supplements the historic account. For four centuries or more, from their first visits around AD 1000 to the eve of the Columbus voyages, the Vikings explored and settled thousands of miles of the coasts and rivers of North America. From New York´s Long Island to the Canadian High Arctic the New World was a playground for Viking adventurers. And the name the Vikings gave to this New World - America.