> That's when the desertification of the Sahara began and the people who had lived there came to Egypt and inserted themselves at the top of society. It's very

> That's when the desertification of the Sahara began and the people who had lived there came to Egypt and inserted themselves at the top of society. It's very interesting to imagine the "green Sahara" cultures, with all of their cities and temples now under tons of sand, that we otherwise have no knowledge of.