Now let's look a little bit at the Cho dynasty itself. Luckily for us the Cho dynasty isn't going to be a lot different culturally than the Shang dynasty. That's going to carry on. But they are going to develop a different type of system for controlling the vast amount of land under their umbrella. And this is a system of feudalism. You better know what feudalism is because it's going to be popping up all over in Japan and Europe. So you might as well learn it now.