They were a numeric kind of barbaric tribe that came in and are going to run the show now and they're going to make their capital at Babylon. And that's why they're known as Babylonians. And the Babylonians are going to last for about 500 years to about 1500 BCE. But their crowning achievement, their golden age around 1750 BCE is going to be when they had the leader Hammurabi. And Hammurabi is best known for not only being a very powerful and in a sense peaceful leader, he really tried to look after his people, but he believes in law and order. So here's some more vocabulary. It's called Hammurabi's Code.