Dictys Cretensis (Ancient Greek: Δίκτυς ὁ Κρής) of Knossus was the legendary companion of Idomeneus during the Trojan War, and the purported author of a diary of its events, that deployed some of the same materials worked up by Homer for the Iliad. With the rise in credulity in Late Antiquity, the story of his journal, an amusing fiction addressed to a knowledgeable and sophisticated Alexandrian audience, came to be taken literally.
In the 4th century AD a certain Q. Septimius brought out Dictys Cretensis Ephemeris belli Trojani, ("Dictys of Crete, chronicle of the Trojan War") in six books, a work that professed to be a Latin translation of the Greek version. Its chief interest lies in the fact that, as knowledge of Greek waned and disappeared in Western Europe, this and the De excidio Trojae of Dares Phrygius were the sources from which the Homeric legends were transmitted to the Romance literature of the Middle Ages.
An elaborate frame story presented in the prologue to the Latin text details how the manuscript of this work, written in Phoenician characters on tablets of limewood or tree bark, survived: it was said to have been enclosed in a leaden box and buried with its author, according to his wishes.
The Greek "name" Eupraxis simply means "right actions", a familiar goal in discussions of ethics, and an amusingly apt name for the finder.
The prologue that characterizes one manuscript tradition is substituted in the other main group of manuscripts with a letter as if written by a Q. Septimius Romanus, to a Q. Arcadius Rufus, in which the writer, giving a condensed version of the discovery tale, informs his friend that, the volume having fallen into his hands, he had been induced, for his own amusement and the instruction of others, to convert it into Latin. The modern editor, Werner Eisenhut, surmises that the two groups, neither of which is to be consistently preferred to the other, represent two published editions in Late Antiquity. There are retranslations into Greek of Byzantine date, embodied in universal histories, of which Smith adds, "We may add to this account, that the writers of the Byzantine period, such as Joannes Malelas, Constantinus Porphyrogenitus, Georgius Cedrenus, Constantinus Manasses, Joannes and Isaacus Tzetzes, with others, quote largely from this Dictys as an author of the highest and most unquestionable authority, and he certainly was known as early as the age of Aelian."