I wonder when the a priori view of history will be corrected. There are many clues and evidences that the history we were taught left out much and speculated at much.
Contemplate the Piri Reis map too!
http://www.prep.mcneese.edu/engr/engr321/preis/piri_r~1.htm
Lots of history needs to be corrected because it has been corrupted.
Today we are still deliberately having history corrupted as we go along.
The days are coming when testing will prove lots of what other self intereseted groups declared as bogus to be the real thing.
In the interest of truth I wish these reasearchers well.
Don't forget the bunch of voyages the Chinese made in 1421.
Chinese, Vikings, Basques, Greeks, it doesn't matter. They all failed to make a comtemporary record of it. Tough noogies.
Columbus discovered a continent of savages, Europeans came over and tamed the place. The rest is history as they say.
Vikings, Chinese and others are simply curiosities.