We are all familiar with joke books in some form or another, but did you know that the oldest surviving one was written around 1,600 years ago? It is called Philogelos (Φιλόγελως; Philógelōs), which means “The Laughter-Lover” in Ancient Greek. It was probably written in the late fourth or early fifth century AD and contains 265 jokes written in a crude dialect of Ancient Greek.