[BenLurkin]

I ‘ve often wondered if the Sarmatian presence in Roman times was the reason for all the black haired Scots in history.

[SunkenCiv]

It may have left a trail of DNA, but unlikely, given that Scotland is a maritime country, many ports, heh heh...

[blam]

"I ‘ve often wondered if the Sarmatian presence in Roman times was the reason for all the black haired Scots in history. "

Nope.