You’d think that with today’s proliferation of readily accessible nude pictures, adult films, and sex toys, the world of erotica is disposable; there’s always something new just a click away, so why bother to save anything?

But the depiction of sex has been a part of human culture for thousands of years. While it’s easy to think that the pornography industry is an invention of the last three or four decades, erotic expression reaches as far back as the 8th century BC.

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