Maybe how the blue eye gene came to be in Native Americans?
Mandans?
I've read that Thomas Jefferson ordered Lewis & Clark not to mention one word about light-skinned, blue eyed Indians in their written scouting report to him.
His concern was that some other European power would use that 'hook' to claim those areas that were not yet part of the USA. So....
There is no mention of the Injuns chowing down on Lutefisk and washing it down with akvavit, so I am not believing this Norvegian ancestry ting. Could be a ploy to get a casino in Oslo.