They would take advantage of vulnerable populations. They landed on Lindensfarn and they wreaked havoc. They killed, they murdered, they stole and when they brought the bounty back to those Scandinavian countries people were like, oh my goodness that's awesome. 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.