The ecclesiastical historians, from whom alone we derive a partial and imperfect knowledge of this persecution, are at a loss how to account for the fears and dangers of the emperors.

Two of these writers, a prince and a rhetorician, were eye-witnesses of the fire of Nicomedia.

The one ascribes it to lightning, and the divine wrath; the other affirms, that it was kindled by the malice of Galerius himself.
As the edict against the Christians was designed for a general law of the whole empire, and as Diocletian and Galerius, though they might not wait for the consent, were assured of the concurrence, of the Western princes, it would appear more consonant to our ideas of policy, that the governors of all the provinces should have received secret instructions to publish, on one and the same day, this declaration of war within their respective departments.

It was at least to be expected, that the convenience of the public highways and established posts would have enabled the emperors to transmit their orders with the utmost despatch from the palace of Nicomedia to the extremities of the Roman world; and that they would not have suffered fifty days to elapse, before the edict was published in Syria, and near four months before it was signified to the cities of Africa.

This delay may perhaps be imputed to the cautious temper of Diocletian, who had yielded a reluctant consent to the measures of persecution, and who was desirous of trying the experiment under his more immediate eye, before he gave way to the disorders and discontent which it must inevitably occasion in the distant provinces.
At first, indeed, the magistrates were restrained from the effusion of blood; but the use of every other severity was permitted, and even recommended to their zeal; nor could the Christians, though they cheerfully resigned the ornaments of their churches, resolve to interrupt their religious assemblies, or to deliver their sacred books to the flames.