In the Roman Calendar, and in those dependent upon them, the two apostles are indeed constantly commemorated together, but on the 28th October. No reason has been discovered for the choice of this date. It does not seem to have been due either to the _Hieronymianum_ or to Bede. The former has “In Suana, a city of Persia, the birthday of the apostles Simon and Jude”[643] (_Cod. Epternac._). As far as Roman sacramentaries are concerned, St Simon and St Jude appear only in the later recensions of the _Gregorianum_. The menology of Constantinople does not contain St Simon, but it has Thaddeus on the 20th August. The _Basilianum_ has an apostle Simon on the 29th April who is called Jude, and on the 10th May the apostle Simon Zelotes, and, further, an apostle Jude on the 22nd May and 19th June. All this is obscure and arbitrary. The fact that these apostles are not joined together, but have each their separate day, agrees with the Eastern service-books. The lectionary of the Syrians of the eleventh century has St Simon on the 10th May, Jude on the 16th May. The Coptic Calendar in Seldenius has Jude Thaddeus on the 20th May. A remarkable proof of the obscurity hanging over the apostles is found in the circumstance that in some calendars which commemorate them together on the same day other saints of the same name are found in addition. Thus in the _Neapolitanum_ there is a Jude on the 26th May and a “passio S. Simonis Ap.” on the 10th September, as well as the commemoration of them both together on the 1st July. In the Parisian lectionary of St Geneviève, in the Calendar of Charlemagne, and in the _Gelasianum_, there is no mention of St Simon and St Jude. (9) ST MARK THE EVANGELIST According to a constant and universal tradition, he was the first Bishop of Alexandria, and his name appears first in all lists of the bishops of that See. However, as far as calendars and martyrologies go, his name does not appear in those of the West until the ninth century, nor in the _Constantinopolitanum_ until the same period. Unfortunately the most ancient Coptic Calendar in Mai is imperfect for the month of April. It is only in the _Synaxarium_ of the ninth century, published by Mai, that he appears. His name appears in all later Coptic Calendars, in the _Neapolitanum_, which mentions him a second time on the 17th May, and in the _Basilianum_. There is not much to be said in support of the 25th April as the day of St Mark’s death. Moreover, the _Hieronymianum_ gives the 23rd September as the date of his death, but the Paschal Chronicle puts it down on the 1st Phormathi, _i.e._ the 26th March.[644] St Jerome in his chronicle gives the year of his death as the eighth of Nero.