The comparison of the Arian martyrology with that of St Jerome has further led to a curious discovery,[761] _i.e._ that the entries from the 6th (or more correctly from the 8th) to the 30th June are indeed included in the martyrology of St Jerome, but have been bodily transferred to the corresponding dates in July.[762] This latter month has only three entries, and it has been thought that the mistake is due to the Arian compiler or his transcribers, but it is just as likely that the change of date was made by the author of the _Hieronymianum_. How this fact is to be explained must be left to conjecture. Another important point bearing upon the connection between the two documents is the fact that the one mentions Bishop Eusebius of Cæsarea on the 30th May, but the other in more detail on the 21st June, as follows: _In Cæsarea Palæstinæ Dep. Eusebi Epi. Historiographi_. Which is correct? Certainly the Syrian document, which also gives correctly the day of Arius’ death. The entry on the 6th June clearly exhibits the Arian character of the document: “In Alexandria, Arius Presbyter.” The fact that he is merely commemorated, proves that it is incorrect to suppose, as many do, that another Arius, a reputed, but otherwise unknown, martyr of Alexandria is intended. The martyrs in this document are treated to more than a mere commemoration (dukrana). Accordingly he did not regard this particular Arius as a martyr. From the description which we have given of this highly important document, one is led to expect that it will throw fresh light on certain historical questions, and so, as a matter of fact, it does. For instance, we can fix the death of Arius by its assistance on the 6th June 336. Arius died on a Saturday shortly before sunset. On the following day he was to have been solemnly received into the Church.[763] The only year which can be taken into consideration is 336, for in it the 6th June fell on a Saturday.[764] The historian Eusebius died about the time when Athanasius returned to Alexandria from his first exile. This was shortly after Constantine’s death († 22nd May 337). Since Eusebius died soon after he had finished the life of Constantine, whom he did not long survive, his death is to be placed on the 30th May 338. This takes for granted that the Bishop of Palestine mentioned on the 30th May is identical with the historian, which can scarcely be called in doubt. Cæsarea was the ecclesiastical metropolis of Palestine, and this accounts for his title, Bishop of Palestine.[765] His successor and heir and biographer was the energetic Acacius.