So how do we know that these kings were scoodily-pooping with lady priests? Because they made a scoodily-pooping tape and put it on the internet. No, because there's a written record. Mesopotamia gave us writing, specifically a form of writing called cuneiform, which was initially created not to, like, woo lovers or whatever, but to record transactions, like how many bushels of wheat were exchanged for how many goats. I'm not kidding, by the way, a lot of cuneiform is about wheat and goats. I don't think you can overestimate the importance of writing, but let's just make three points here. First, writing and reading are things that not everyone can do, so they create a class distinction, one that in fact survives to this day.