At that time Hippolytus, besides many other treatises, wrote a work on the passover. He gives in this a chronological table, and presents a certain paschal canon of sixteen years, bringing the time down to the first year of the Emperor Alexander.
Of his other writings the following have reached us: On the Hexæmeron, On the Works after the Hexæmeron, Against Marcion, On the Song of Songs, On Portions of Ezekiel, On the Passover, Against All the Heresies; and you can find many other works preserved by many.