sound, but considering it sufficient for them, if they completely deceive by their argument some of those whom they meet and persuade them to their view.  But for this calamity it is quite impossible either to express in words or to conceive in thought any explanation, except indeed to refer it to God.  For it did not come in a part of the world nor upon certain men, nor did it confine itself to any season of the year, so that from such circumstances it might be possible to find subtle explanations of a cause, but it embraced the entire world, and blighted the lives of all men, though differing from one another in the most marked degree, respecting neither sex nor age.  For much as men differ with regard to places in which they live, or in the law of their daily life, or in natural bent, or in active pursuits, or in whatever else man differs from man, in the case of this disease alone the difference availed naught.  And it attacked some in the summer season, others in the winter, and still others at the other times of the year.  Now let each one express his own judgment concerning the matter, both sophist and astrologer, but as for me, I shall proceed to tell where this disease originated and the manner in which it destroyed men.

It started from the Aegyptians who dwell in Pelusium.  Then it divided and moved in one direction towards Alexandria and the rest of Aegypt, and in the other direction it came to Palestine on the borders of Aegypt; and from there it spread over the whole world, always moving forward and travelling at times favourable to it.  For it seemed to move by fixed arrangement, and to tarry for a specified time in each country, casting its blight slightingly upon none, but spreading in either direction right out to the ends of the world, as if fearing lest some corner of the earth might escape it.  For it left neither island nor cave nor mountain ridge which had human inhabitants; and if it had passed by any land, either not affecting the men there or touching them in indifferent fashion, still at a later time it came back; then those who dwelt round about this land, whom formerly it had afflicted most sorely, it did not touch at all, but it did not remove from the place in question until it had given up its just and proper tale of dead, so as to correspond exactly to the number destroyed at the earlier time among those who dwelt round about.  And this disease always took its start from the coast, and from there went up to the interior.  And in the second year it reached Byzantium in the middle of spring, where it happened that I was staying at that time.  And it came as follows.  Apparitions of supernatural beings in human guise of every description were seen by many persons, and those who encountered them thought that they were struck by the man they had met in this or that part of the body, as it happened, and immediately upon seeing this apparition they were seized also by the disease.  Now at first those who met these