And the reason why this is considered the beginning of the ancient Egyptian civilization is this is when we believe that Upper and Lower Egypt were first united under the king, and there's different names used, Narmer, sometimes, or Menes, Menes. I'm going to mispronounce things every now and then, and I'm probably doing it here as well. And so he was the king that unified Upper and Lower Egypt into an empire. And the empire, as we'll see, which lasts thousands of years, every one of these spaces is 100 years, so we're gonna go over a huge time span. But the ancient Egyptian civilization is roughly divided into three kingdoms. You have the Old Kingdom, which went from about 20, right from about the 27th century BCE up to about the 17th century BCE. You have the Middle Kingdom, and you have the New Kingdom.