I want to do that as well and that's what Vikings started to do. That's when it's going to explode really in the mid 9th century where Vikings are going to take advantage of these long ships and they're going to look towards Europe. They're traveling across the Baltic Sea and they're finding pathways into Europe which are going to allow invasion. In 845 the Viking king Ragnar is going to find his way into France through the Seine and the Loures rivers. Some of them are going to actually stay behind and that's going to be the Norman population and eventually the Normans are going to conquer England. It was William the Conqueror and he's the grandson of a Viking king. But this is how they make their way into Europe, into Paris along these rivers plundering and killing and taking the booty.