In the third century the religion, though still forbidden, was quite openly tolerated; the Church organized itself without concealment; ecclesiastical councils assembled without interference. There were some brief and local attempts at repression, there was only one grave persecution (begun by Decius, A.D. 250, and continued by Valerian). In fact, throughout this century, there were not many victims, though afterwards the Christians invented a whole mythology of martyrdoms. Many cruelties were imputed to Emperors under whom we know that the Church enjoyed perfect peace.
A long period of civil confusion, in which the Empire seemed to be tottering to its fall, had been terminated by the Emperor Diocletian, who, by his radical administrative reforms, helped to preserve the Roman power in its integrity for another century. He desired to support his work of political consolidation by reviving the Roman spirit, and he attempted to infuse new life into the official religion. To this end he determined to suppress the growing influence of the Christians, who, though a minority, were very numerous, and he organized a persecution. It was long, cruel and bloody; it was the most whole-hearted, general and systematic effort to crush the forbidden faith. It was a
