 In his "Clouds", the Athenian comic playwright Aristophanes alludes to Diagoras as a well-known figure of the time.whose second, extant version probably falls around 419–17 BC.Diodorus informs us that a few years later, c. 415 BC, he was accused of impiety, and he thought it best to escape Athens to avoid prosecution, and classical sources speak of a reward for either catching or killing him.