Alright, so you dont want to link that vid. Im actually interested in hearing some more Nords, im not trying to argue with you or something.
So no 'Vikings' ever had dark brown eye's.... Vikings being Nordic/Scandinavian people who raided and traded. I'm pretty sure some Scandinavian people have brown eyes. I have brown eyes. I am not Scandinavian any more now?
Some Scandinavian people are (were) vikings. Not all of them. Back then, yeah, they didnt mix races and dark brown eyes were indeed really really rare.
Most modern scandinavians arent 'pure' scandnavians anymore. I sound like some nazi, but thats how genes work.