Now let's see if we can invent some boats and go pander the world. So in the late 8th century there's a huge increase in the amount of civil wars between Viking communities due to the lack of resources. So they're going to start looking outward into the water and that matched with their awesome seafaring technological skills is going to give them the ability to do that and that's based in the Viking longship, a revolutionary sea craft machine that's going to out beat everybody in the world. Everybody in the world at that time period had boats that were coastal, that you could only travel around on coastal areas, but this Viking longship is going to give them the ability to not only navigate rivers and coasts but the deep ocean as well. These were swift machines, low draft, they could travel in shallow water. They weren't just coastal, they could be carried across land. It only took them six weeks to make one of these puppies.