It may be assumed that this Catacomb was exclusively Jewish, and we know, from the testimony of Juvenal[38] and others, that numbers of the Jews inhabited the adjacent part of Rome, about the Porta Capena and the valley of Egeria. It is not, however, certain whether it is the original type, or a later imitation, of the Christian cemetery. But the Jewish population must have had extra-mural places of sepulture before the Christian era; and it is probable that the early Jewish converts to Christianity may have merely continued a mode of 53 burial already in vogue, substituting the emblems of their newly adopted faith for those which they had forsaken; or, rather--for we find that they frequently retained certain Jewish symbols, as the dove, olive branch, and palm--supplementing them with the emblems of Christianity. De Rossi has expressed the opinion that the earliest mode of Christian burial was in sarcophagi, as in the Jewish cemetery above described. The date of the planting of Christianity in Rome is uncertain. Probably some of the “strangers of Rome” who witnessed the miracle of the Pentecost, or, perhaps, the Gentile converts of the “Italian band” of Cornelius, brought the new evangel to their native city.[39] But certain it is that as early as A. D. 58 the faith of the Roman Church 54 was “spoken of throughout the whole world.” “Christianity,” says Tertullian, “grew up under the shadow of the Jewish religion, to which it was regarded as akin, and about the lawfulness of which there was no question;”[40] and it doubtless adopted the burial usages of Judaism. But even without the example of the Jews the Roman Christians would naturally revolt from the pagan custom of burning the dead, with its accompanying idolatrous usages,[41] and would prefer burial, after the manner of their Lord. They showed a tender care for the remains of the dead, under a vivid impression of the communion of saints and the resurrection of the body. They seemed to regard the sepulchre as “God’s cabinet or shrine, where he pleases to lay up the precious relics of his dear saints until the jubilee of glory.”[42] Even the Jews designated the grave as _Beth-ha-haim_, the “house of the living,” rather than the house of the dead. It is probable, therefore, that the origin of the Christian Catacombs dates from the death of the first Roman believer in Christ.