The Epistle of Mathetes to Diognetus (Greek: Πρὸς Διόγνητον Ἐπιστολή) is probably the earliest example of Christian apologetics, writings defending Christianity from its accusers. The Greek writer and recipient are not otherwise known, but the language and other textual evidence dates the work to the late 2nd century; some assume an even earlier date and count it among the Apostolic Fathers.