Chapter III
Eusebius' Church History.
§1. Date of its Composition
The work with which we are especially concerned at this time is the Church History, the original Greek of which is still extant in numerous mss. It consists of ten books, to which is added in most of the mss. the shorter form of the Martyrs of Palestine (see above, p. 29). The date of the work can be determined with considerable exactness. It closes with a eulogy of Constantine and his son Crispus; and since the latter was put to death by his father in the summer of 326, the History must have been completed before that time. On the other hand, in the same chapter Eusebius refers to the defeat of Licinius, which took place in the year 323 a.d. This gives a fixed terminus a quo. It is not quite certain from Eusebius' words whether the death of Licinius had already taken place at the time he wrote, but it seems probable that it had, and if so, the completion of the work must be put as late as the summer of 324. On the other hand, not the slightest reference is made to the Council of Nicæa, which met in the summer of 325; and still further the tenth book is dedicated to Paulinus, at one time bishop of Tyre and afterward bishop of Antioch (see Euseb. Contra Marc. I. 4, and Philost. H. E. III. 15), who was already dead in the summer of 325: for at the Nicene Council, Zeno appears as bishop of Tyre, and Eustathius as bishop of Antioch (see for further particulars Lightfoot, p. 322). We are thus led to place the completion of the History in the year 324, or, to give the widest possible limits, between the latter part of 323 and the early part of 325 a.d.
But the question has been raised whether the earlier books may not have been composed some years before this. Lightfoot (following Westcott) supposes that the first nine books were completed not long after the edict of Milan and before the outbreak of the quarrel between Constantine and Licinius in 314. There is considerable to be said in favor of this theory. The language used in the dedication of the tenth book seems to imply that the nine books had been completed some time before, and that the tenth is added as a sort of postscript. The close of the ninth book strengthens that conclusion. Moreover, it would seem from the last sentences of that book that Constantine and Licinius were in perfect harmony at the time it was written, a state of affairs which did not exist after 314. On the other hand, it must be noticed that in Book IX. chap. 9 Licinius' "madness" is twice referred to as having "not yet" seized him (in §1 oupo manentos tote, and in §12 oupo tote eph' hen husteron ekpeptoke manian, ten di?noian ektrapeis). It is necessary either to interpret both these clauses as later insertions (possibly by Eusebius' own hand at the time when he added the tenth book; cf. also p. 30, above), or to throw the composition of the ninth book down to the year 319 or later. It is difficult to decide between these alternatives, but I am inclined on the whole to think that Westcott's theory is probably correct, and that the two clauses can best be interpreted as later insertions. The very nature of his History would at any rate lead us to think that Eusebius spent some years in the composition of it, and that the earlier books, if not published, were at least completed long before the issue of the ten books as a whole. The Chronicle is referred to as already written in I. 1; the Eclogæ Proph. (? see below, p. 85) in I. 2 and 6; the Collection of Ancient Martyrdoms in IV. 15, V. preface, 4, and 22; the Defense of Origen in VI. 23, 33, and 36; the Life of Pamphilus in VI. 32, VII. 32, and VIII. 13. In VIII. 13 Eusebius speaks also of his intention of relating the sufferings of the martyrs in another work (but see above, p. 30).
§2. The Author's Design.
That the composition of a history of the Church was Eusebius' own idea, and was not due to any suggestion from without, seems clear, both from the absence of reference to any one else as prompting it, and from the lack of a dedication at the beginning of the work. The reasons which led him to undertake its composition seem to have been both scientific and apologetic. He lived, and he must have realized the fact, at the opening of a new age in the history of the Church. He believed, as he frequently tells us, that the period of struggle had come to an end, and that the Church was now about entering upon a new era of prosperity. He must have seen that it was a peculiarly fitting time to put on record for the benefit of posterity the great events which had taken place within the Church during the generations that were past, to sum up in one narrative all the trials and triumphs which had now emerged in this final and greatest triumph, which he was witnessing. He wrote, as any historian of the present day would write, for the information and instruction of his contemporaries and of those who should come after, and yet there was in his mind all the time the apologetic purpose, the desire to exhibit to the world the history of Christianity as a proof of its divine origin and efficacy. The plan which he proposed to himself is stated at the very beginning of his work: "It is my purpose to write an account of the successions of the holy apostles, as well as of the times which have elapsed from the days of our Saviour to our own; and to relate how many and how important events are said to have occurred in the history of the Church; and to mention those who have governed and presided over the Church in the most prominent parishes, and those who in each generation have proclaimed the divine word either orally or in writing. It is my purpose also to give the names and the number and the times of those who through love of innovation have run into the greatest errors, and proclaiming themselves discoverers of knowledge, falsely so-called, have, like fierce wolves, unmercifully devastated the flock of Christ. It is my intention, moreover, to recount the misfortunes which immediately came upon the whole Jewish nation in consequence of their plots against our Saviour, and to record the ways and the times in which the divine word has been attacked by the Gentiles, and to describe the character of those who at various periods have contended for it in the face of blood and tortures, as well as the confessions which have been made in our own days, and finally the gracious and kindly succour which our Saviour afforded them all." It will be seen that Eusebius had a very comprehensive idea of what a history of the Church should comprise, and that he was fully alive to its importance.
§3. Eusebius as a Historian. The Merits and Defects of his History.
The whole Christian world has reason to be thankful that there lived at the opening of the fourth century a man who, with his life spanning one of the greatest epochs that has occurred in the history of the Church, with an intimate experimental knowledge of the old and of the new condition of things, was able to conceive so grand a plan and possessed the means and the ability to carry it out. Had he written nothing else, Eusebius' Church History would have made him immortal; for if immortality be a fitting reward for large and lasting services, few possess a clearer title to it than the author of that work. The value of the History to us lies not in its literary merit, but in the wealth of the materials which it furnishes for a knowledge of the early Church. How many prominent figures of the first three centuries are known to us only from the pages of Eusebius; how many fragments, priceless on account of the light which they shed upon movements of momentous and far-reaching consequence, have been preserved by him alone; how often a hint dropped, a casual statement made in passing, or the mention of some apparently trifling event, gives the clue which enables us to unravel some perplexing labyrinth, or to fit into one whole various disconnected and apparently unrelated elements, and thus to trace the steps in the development of some important historical movement whose rise and whose bearing must otherwise remain an unsolved riddle. The work reveals no sympathy with Ebionism, Gnosticism, and Montanism, and little appreciation of their real nature, and yet our knowledge of their true significance and of their place in history is due in considerable part to facts respecting the movements or their leaders which Eusebius alone has recorded or preserved. To understand the development of the Logos Christology we must comprehend the significance of the teaching of Paul of Samosata, and how inadequate would our knowledge of the nature of that teaching be without the epistle quoted in Book VII. chap. 30. How momentous were the consequences of the paschal controversies, and how dark would they be were it not for the light shed upon them by our author. How important, in spite of their tantalizing brevity and obscurity, the fragments of Papias' writings; how interesting the extracts from the memoirs of Hegesippus; how suggestive the meager notices from Dionysius of Corinth, from Victor of Rome, from Melito, from Caius; how instructive the long and numerous quotations from the epistles of Dionysius of Alexandria! He may often fail to appreciate the significance of the events which he records, he may in many cases draw unwarranted conclusions from the premises which he states, he may sometimes misinterpret his documents and misunderstand men and movements, but in the majority of cases he presents us with the material upon which to form our own judgments, and if we differ with him we must at the same time thank him for the data which have enabled us independently to reach other results.
But the value of Eusebius' Church History does not lie solely in the fact that it contains so many original sources which would be otherwise unknown to us. It is not merely a thesaurus, it is a history in the truest sense, and it possesses an intrinsic value of its own, independent of its quotations from other works. Eusebius possessed extensive sources of knowledge no longer accessible to us. His History contains the results of his extended perusal of many works which are now irrecoverably lost, of his wide acquaintance with the current traditions of his day, of his familiar intercourse with many of the chief men of the age. If we cut out all the documents which he quotes, there still remains an extensive history whose loss would leave an irreparable blank in our knowledge of the early Church. How invaluable, for instance, to mention but one matter, are the researches of our author in regard to the circulation of the books of the New Testament: his testimony to the condition of the canon in his own time, and to the more or less widespread use of particular writings by the Fathers of preceding centuries. Great as is the value of the sources which Eusebius quotes, those that he does not give are still more extensive, and it is the knowledge gained from them which he has transmitted to us.
The worth of these portions of his History must depend in the first place upon the extent and reliability of his sources, and in the second place upon the use which he made of them.
A glance at the list of his authorities given in the index, reveals at once the immense range of his materials. The number of books which he either quotes or refers to as read is enormous. When to these are added the works employed by him in the composition of his Præp. Evang., as well as the great number which he must have perused, but does not mention, we are amazed at the extent of his reading. He must have been a voracious reader from his earliest years, and he must have possessed extraordinary acquisitive powers. It is safe to say that there was among the Fathers, with the possible exception of Origen, no more learned man than he. He thus possessed one of the primary qualifications of the historian. And yet even in this respect he had his limitations. He seems to have taken no pains to acquaint himself with the works of heretics, but to have been content to take his knowledge of them at second hand. And still further, he was sadly ignorant of Latin literature and of the Latin Church in general (see below, p. 106); in fact, we must not expect to glean from his History a very thorough or extended knowledge of western Christendom.