And our first civilizations we'll see in ancient Egypt along the Nile. We will see it in the Indus Valley along the Indus River. We'll see it in China along the Yellow and Yangtze Rivers. And we'll also see it in Mesopotamia along the Tigris and Euphrates Rivers. And what we're gonna focus on in this video in particular is Mesopotamia. Now the word Mesopotamia literally comes from mesos, between, and patmos, I'm probably not pronouncing it right, rivers. So it's the area between rivers is literally what Mesopotamia is referring to.