As we get into the 10th century, you see the reign of Otto the Great, Holy Roman Emperor over the Germanic kingdoms. The ninth century is also the time of Tang China. You have the Abbasid Muslim Caliphate in control over most of the Middle East and North Africa. And it is also the Viking Age. So what we have here in this magenta color, this would be modern day Sweden. But it was also the home of the Varangians or whom we later would refer to as the Vikings. And we know them to be great seafarers.