And actually the Book of the Dead is a collection of all of these prayers and these hymns and these magical spells that were left behind with these mummified coffins for hope that they would pass the big test of the weighing of the heart in the afterlife. So mummification, polytheism, the different gods and goddesses of Egyptian life, very very important. Now let's take a look at basically the social system of Old Kingdom Egypt. Let's do it. Right now? Right now! So again, like Mesopotamia, notice how I keep saying that, like Mesopotamia, they're also going to have a social class system that is hierarchical, that is like a pyramid.