The Decree of Diopeithes was instituted by the opponents of Pericles in an attempt to discredit Anaxagoras.[1] The date is not exact, as sources give different years. Some sources list the arrest and trial of Anaxagoras as early as 437/6 BCE,[2] others at 434 BCE,[3] and still others 432.[4] The charges stemmed from his observations of the heavens and asserting that there were no lunar and solar deities.[5] [6]
According to the Oxford Classical Dictionary, the only reference to this decree comes from Plutarch's Pericles:
A reference to the trial of Anaxagoras was mentioned by Plato in Apology: