Vinland Map of America no forgery, expert says

The 15th century Vinland Map, the first known map to show part of America before explorer Christopher Columbus landed on the continent, is almost certainly genuine, a Danish expert said Friday.

Controversy has swirled around the map since it came to light in the 1950s, many scholars suspecting it was a hoax meant to prove that Vikings were the first Europeans to land in North America -- a claim confirmed by a 1960 archaeological find.

Doubts about the map lingered even after the use of carbon dating as a way of establishing the age of an object.