Did you see the article on Otzi? I might post on that later. Found in Switzerland, his closest descendants are in Sardinia. Which means even in the Neolithic people mixed… a lot. The mystery is more how races perpetuated. Maybe it was one of those genetic bottle necks. To see me, I look like middle aged Greek, Portuguese, Italian, something like that, depending on the weight. However, two of my grandparents were blond, and three had light eyes (two blue, one green.) Race is the last thing I care about.