Comment Re:hm (Score 4, Informative) 210
The map shows it as an island presumably (assuming it is genuine) because the area was explored to a very limted extent and the explorers were unaware that it was part of a much greater land mass.
Huh? The map shows Vinland as an island because it's Newfoundland and Newfoundland is an island. The province people commonly refer to as "Newfoundland" is more properly known as "Newfoundland and Labrador", Labrador being the mainland part of the province (possibly what the Norse called "Markland", as your article noted) and Newfoundland being the island of Newfoundland (site of the only Norse village in North America outside of Greenland).