And then below them we have the workers themselves, the people that are digging the ditches, building the walls, you know, carrying the rocks. And then even below them we have slavery in the land of Sumer. Slaves were normally captured from outside of the kingdom, but they were also sometimes sold by their parents into slavery. But you could free yourselves, I guess, if you worked hard enough, but I certainly wouldn't want to be a slave in any circumstance. Now there is a slight difference in the way that men and women were viewed in Sumer than they're going to be viewed afterwards. It certainly is a patriarchal society. In a sense, it's run by men.