Ancient Erotica!
You know this is B.C., because this art is positively sinful. Tablets depicting Mesopotamian doggystyle have been discovered, and "there's a scholarly debate over what purpose the erotic art served." No, fuckers, there's not much to debate about this. The purpose for these, despite any thin veil of religious or artistic respectability, is that people like looking at depictions of sexual acts.
Via.