While there had been calendars in the West containing the names of martyrs belonging to a particular diocese or country, the compiler of the _Hieronymianum_ regarded the Church as a whole—as catholic. The meaning of this will be seen from a glance at the service-books, the sacramentaries especially. In the ninth century and later, the Roman sacramentaries, even those intended for use in other countries such as those of St Gall, Mainz, Cologne, and Essen, contain only Masses for the Roman saints, confining themselves to one or two local saints in the supplement. The principle of universality only very gradually affected the formularies of the Mass, and did not reach its full expression until the sixteenth century, but it came to the fore much earlier in the martyrologies, as early indeed as Ado, Usuardus, Notker, and Rabanus Maurus, chiefly owing to the influence of the _Hieronymianum_. This document is not without peculiarities of its own. In all recensions of the text, the 25th March is given as the day of Christ’s death, and since James the Lord’s brother, here called also “The Just,” died at Easter, his death is placed also on the 25th March. In the Berne Codex the sacrifice of Isaac is commemorated on the same day. There is a goodly array of Old Testament names, _e.g._ Aggeus, Habacuc, Job, Joel, Aaron, Eliseus, etc. In the Berne Codex, the 28th September is given as the day of Noe’s going out of the ark, the 7th January as the day of the Exodus, and the 1st May as the commencement of our Lord’s preaching. Now that the date of its composition has been fixed, the _Hieronymianum_ is specially valuable for the information which it gives concerning Frankish hagiography and its gradual development. Whoever will devote himself in the future to investigating St Denys of Paris, St Ursula, etc., must pursue his studies in the various recensions and transcriptions of the _Hieronymianum_. It will well repay the trouble, if someone would investigate how many of the reputed martyrs of Lower Germany are named in this important document. It only knows of two martyrs at Cologne, Asclinius and Pamphilus, in addition to the Moorish martyrs whose numbers, however, vary greatly in the MSS.; their commander is named Gereon. No saints are given for Mainz. For Treves we have Valerius, Paulinus, Maximinus, and a Bishop Militius; Palmatius Thyrsus and his Innumerable Company had not yet been discovered or invented. For Bonn the connection in which Cassius, Florentius, and Mallusius stand to one another on the 10th October is worthy of notice. We find some African martyrs first of all on this day, and then, without indication of Bonn or any other locality, we have: “Et alibi Cassi, Eusebi, Florenti, Victoris, Agrippinæ, Mallusi cum alii trecentos xxx.” (_sic_). The later legends omit Eusebius, and put Mallusius instead, who was buried at Birten and discovered by Bishop Evergisil; the martyr Victor is said to have been also originally buried at Birten.[778]