REIGN OF DIOCLETIAN (A.D. 284-305).—The reign of Diocletian marks an important era in Roman history. Up to this time the imperial government had been more or less carefully concealed under the forms and names of the old republic. The government now became an unveiled and absolute monarchy. Diocletian's reforms, though radical, were salutary, and infused such fresh vitality into the frame of the dying state as to give it a new lease of life for another term of nearly two hundred years.
He determined to divide the numerous and increasing cares of the distracted empire, so that it might be ruled from two centres—one in the East and the other in the West. In pursuance of this plan, he chose as a colleague a companion soldier, Maximian, upon whom he conferred the title of Augustus. After a few years, finding the cares of the co-sovereignty still too heavy, each sovereign associated with himself an assistant, who took the title of Cæsar, and was considered the son and heir of the emperor. There were thus two Augusti and two Cæsars. Milan, in Italy, became the capital and residence of Maximian; while Nicomedia, in Asia Minor, became the seat of the court of Diocletian. The Augusti took charge of the countries near their respective capitals, while the younger and more active Cæsars were assigned the government of the more distant and turbulent provinces. The vigorous administration of the government in every quarter of the empire was thus secured. The authority of each of the rulers was supreme within the territory allotted him; but all acknowledged Diocletian as "the father and head of the state."
[Illustration: DIOCLETIAN.]
The most serious drawback to the system of government thus instituted was the heavy expense incident to the maintenance of four courts with their trains of officers and dependants. The taxes became unendurable, husbandry ceased, and large masses of the population were reduced almost to starvation.
While the changes made in the government have rendered the name of Diocletian famous in the political history of the Roman state, the cruel persecutions which he ordered against the Christians have made his name in an equal degree infamous in ecclesiastical annals; for it was during this reign that the tenth—the last and severest—of the persecutions of the Church took place. By an imperial decree the churches of the Christians were ordered to be torn down, and they themselves were outlawed. For ten years the fugitives were hunted in forest and cave. The victims were burned, were cast to the wild beasts in the amphitheatre—were put to death by every torture and in every mode that ingenious cruelty could devise. But nothing could shake the constancy of their faith. They courted the death that secured them, as they firmly believed, immediate entrance upon an existence of unending happiness. The exhibition of devotion and constancy shown by the martyrs won multitudes to the persecuted faith.
It was during this and the various other persecutions that vexed the Church in the second and third centuries that the Christians sought refuge in the Catacombs, those vast subterranean galleries and chambers under the city of Rome. Here the Christians lived and buried their dead, and on the walls of the chambers sketched rude symbols of their hope and faith. It was in the darkness of these subterranean abodes that Christian art had its beginnings.
[Illustration: CHRIST AS THE GOOD SHEPHERD. (From the Catacombs.)]
After a prosperous reign of twenty years, becoming weary of the cares of state, Diocletian abdicated the throne, and forced or induced his colleague Maximian also to lay down his authority on the same day. Galerius and Constantius were, by this act, advanced to the purple and made Augusti; and two new associates were appointed as Cæsars. Diocletian, having enjoyed the extreme satisfaction of seeing the imperial authority quietly and successfully transmitted by his system, without the dictation of the insolent prætorians or the interference of the turbulent legionaries, now retired to his country-seat at Salona, on the eastern shore of the Adriatic, and there devoted himself to rural pursuits. It is related that, when Maximian wrote him urging him to endeavor, with him, to regain the power they had laid aside, he replied: "Were you but to come to Salona and see the vegetables which I raise in my garden with my own hands, you would no longer talk to me of empire."
REIGN OF CONSTANTINE THE GREAT (A.D. 306-337); THE EMPIRE BECOMES CHRISTIAN.—Galerius and Constantius had reigned together only one year, when the latter died at York, in Britain; and his soldiers, disregarding the rule of succession as determined by the system of Diocletian, proclaimed his son Constantine emperor. Six competitors for the throne arose in different quarters. For eighteen years Constantine fought to gain supremacy. At the end of that time every rival was crushed, and he was the sole ruler of the Roman world.
Constantine was the first Christian emperor. He was converted to the new religion—such is the story—by seeing in the heavens, during one of his campaigns against his rivals, a luminous cross with this inscription: "With this sign you will conquer." He made the cross the royal standard; and the Roman legions now for the first time marched beneath the emblem of Christianity.