 These works seem to have been written in the period between the conquest of Palestine by Chosroes and its reconquest by the Emperor Heraclius in 628.The introductory chapter of the "Pandects" tells of the martyrdom referred to; its last chapter contains a list of heretics from Simon Magus to the Monophysite followers of Severus of Antioch.The book is of special value for its extracts of works no longer existing; the writer had an interest, then uncommon, in early Christian literature.