History of Erotic Depictions.

                                                           History of erotic depictions. 
                           4,000-year-old erotica depicts a strikingly racy ancient sexuality.
     The Turin Erotic Papyrus: The Oldest Known Depiction of Human Sexuality (Circa 1150 B.C.E.)

The world's oldest known dildo is a siltstone 20-centimeter phallus from the Upper Palaeolithic period 30,000 years ago that was found in Hohle Fels Cave near Ulm, Germany.