Such was the astounding relation elicited with some difficulty from a sect of new religionists called Christians, who, as early as the reign of Nero, were sufficiently numerous at Rome to have incurred the hatred of the populace through their austere disposition and their stern abjuration of the national gods.[982] In the year 64 the city was devastated by an appalling conflagration of which the insensate emperor was himself accused, but he shifted the odium to the already discredited recusants, and condemned many of them to perish in the flames by a peculiarly atrocious method.[983] Nevertheless the Christians maintained their ground and thirty years later were regarded with hostility by the tyrant Domitian as a body of proselytizing Jews in the capital.[984] At the dawn of the second century the younger Pliny found them so numerous in his province of Bithynia as almost to have subverted the established religion. In great concern he wrote to the Emperor Trajan questioning whether he should proceed to extremities in his efforts to suppress them. This epistle is extant, and through it some details were first made public as to their tenets and mode of worship. Before daybreak on a certain day they met and recited an address to Christ as to a god; bound themselves by oath to commit no crime against society, and partook together of a common meal. The cultured Roman, imbued with literature and philosophy, estimated the Christian belief as a depraved and extravagant superstition, the eradication of which was dictated by state policy, but his master counselled him to disregard it unless popular animosity should in particular instances compel him to drag its devotees from their obscurity.[985] The Christian missionaries pursued their labours unremittingly and were especially active among the proletariat, from whom during the first centuries their converts were almost exclusively drawn.[986] Throughout the length and breadth of the Empire they persistently undermined the existing order of things by teaching doctrines which were at variance with the received conception of Roman citizenship. Not only did they revile the pagan deities, whom they classed as demons instead of gods, and shun their festivals,[987] but they evinced an utter aversion for military service.[988] The polytheists were incensed at the pretensions of a deity who would not share the theocracy, but claimed to oust all other divinities from their seats and occupy the celestial throne alone,[989] whilst statesmen became alarmed at the prospect of political defection, and began to second the vulgar prejudice by systematic efforts at exterminating the spreading sect. The benignant Marcus Aurelius was induced to believe that the Christians were a danger to the state and he issued a decree (_c._ 177) that they should be sought out and put to death unless willing to abandon their faith.[990] This was the first decided persecution, but, although many perished, it proved ineffective, as no means available were strong enough to extinguish the flames of fanaticism. On the contrary, those who stood firm before the tribunals and were allowed to escape with their lives ranked afterwards as “Confessors,” a title more glorious in the eyes of their fellows than any temporal dignity; whilst constancy to the death became the essential qualification of Martyrs or witnesses to the truth, Saints who were admitted forthwith among the heavenly host as mediators between God and man.[991] As soon as the repressive measures were relaxed all the weaker brethren, who had abjured in the face of danger, prayed for readmission to the conventicles, and were usually received after the infliction of a term of penance. Once and again during the next century and a half widespread persecution was had recourse to by Decius and by Diocletian, but the Christians throve and prospered in the intervals despite of fitful and local hostility.[992] The memorable battle of the Milvian bridge in 312 proved to be a turning-point in the history of Rome and of Christianity; and the state religion of the ancient world was involved in the fall of the dissolute Maxentius. The victorious Constantine, as sole Emperor of the West, immediately concerted a measure with his colleague of the East, Licinius, for the establishment of religious toleration throughout their dominions.[993] Thenceforward Christianity was free to expand in obedience to the charge she had received at her origin and to apply herself to the task of supplanting every other belief.