It tells me that blond hair probably started as a mutation in the area with the high percentage - near the Gulf of Bothnia. Some early Scandinavian had a genetic mutation and somehow the blond gene self selected and dominated that region. The map is also very telling in how that gene spread through parts of Europe - military conquests?
AverageUser From , joined Dec 1969, posts, RR:
Reply 8, posted (5 years 3 months 5 days 20 hours ago) and read 4049 times:
Quoting comorin (Reply 6): It tells me that blond hair probably started as a mutation in the area with the high percentage - near the Gulf of Bothnia.
That's a tempting conclusion, but, one must remember the absolute numbers of people in the North have always been small, so a small percentage of the blue-eyed in the "founder" population might have been multiplied excessively. There are other genes (linked to various genetic diseases [or an actual lack of them]) that are known to have been behaving so.