ITINERARY, ITINERARIUM; a journal, or an account of the distances of places. The most remarkable is that which goes under the names of Antoninus and Etheius; or, as Barthius found in his copy, Antoninus Etheius; a Christian writer, posterior to the times of Constantine. Another, called Hierosolymitanum, from Bourdeaux to Jerusalem, and from Hieraclea through Aulona and Rome to Milan, under Constantine.—Itinerarium denotes a day's march.