The Epistle of Diognetus (usually, but not always, included in the collection of early Christian texts known as the Apostolic Fathers) is neither referred to, nor cited, by any writer of the ancient church, only first coming to the attention of the Christian world in 1436 when the 260-page Codex Argentoratensis, in which it was contained, was discovered in Constantinople by a visiting cleric, Thomas D’Arezzo. The editio princeps, produced by H. Estienne (Stephanus), only appeared in 1592, though transcriptions of the work had been prepared by B. Haus (1580) and …