In this video, we are going to give ourselves an overview of ancient Egypt, which corresponds geographically pretty closely to the modern-day state of Egypt in Northeast Africa. Now, the central feature in both ancient Egypt and in modern Egypt is the Nile River that you see in blue right over here. And the Nile River is one of the great rivers of the world. It rivals the Amazon River. It's the longest river. And its sources, the tributaries of the Nile River, start even south of this picture, and the water flows northward, and eventually its delta reaches the Mediterranean Sea. The delta, which is where a river opens into the sea, is called a delta because, as you can see, these rivers, you can even see it from the satellite pictures right over here, they start branching up a bunch, and you have this upside-down triangular region, which looks a little bit like an upside-down Greek letter delta.