The History of Pyramids

In terms of the history of pyramids, we start with the really early ones. And then we get to the middle kingdom. That's changing a bit because they're made from mud brak rather than stone. The state also changes. You have smaller work forces. A lot more power flows to the provinces. So the pyramids shrink in size. They like chocolate bars in the local op everything shrinking. Butthe the insides is the good stuff.