> If you are black, your ancestors were not vikings That is far too strong a statement. Virtually all black Americans have some verifiable level of European de

> If you are black, your ancestors were not vikings That is far too strong a statement. Virtually all black Americans have some verifiable level of European descent, so they would definitely have Viking ancestors. For actual Africans, it's less certain, but it's at least plausible that an African would have some Viking ancestors. The Byzantines recruited Norse soldiers starting in the 9th century. They would almost certainly have all had Viking ancestry since that was about two hundred years into the Viking age. There were some pretty significant Scandinavian settlements there by the 11th century. Even by the 9th century, the Byzantines had a lot of trade with North Africa and North Africa had a lot of trade with sub-Saharan Africa. If even a bit of interbreeding happened and spread some Viking genes to sub-Saharan Africa that would be plenty of time for them to spread to most of the population. Obviously, Zulu descent is much less common because the Zulu didn't show up until about a thousand years after the Vikings.