So much for the main difficulties. Now let us see what positive evidences we have to substantiate the story. The excavation of the Cemetery of S. Callixtus, which was begun in 1854, and was carried on with great care by De Rossi, led to the clearing out of a crypt in which the early Bishops of Rome had been laid. The bodies had been removed when Paschal I. conveyed so many of those of the saints and martyrs into Rome, on account of the ruin into which the Catacombs had fallen, but their epitaphs remained, all of the third century, and in Greek; among these, that of Urbanus, 230; and it was perhaps precisely this fact which led the recomposer of the Acts to confound the Urban of S. Cæcilia’s time with the Pope. The first Pope known to have been laid there was Zephyrinus, in 218. Here also was found an inscription set up by Damasus I., recording how that the bodies of bishops and priests, virgins and confessors lay in that place. Now by a narrow, irregular opening in the rock, entrance is obtained to a further chamber, about twenty feet square, lighted by a _luminare_ in the top, or an opening to the upper air cut in the tufa. This, there can be no manner of doubt, is the crypt in which reposed the body of S. Cæcilia. In the Acts it was said to adjoin that in which were laid the Bishops of Rome; though, as these bishops were of later date than Cæcilia, if we take her death to have been in 177, their crypt must have been dug out or employed for the purpose of receiving their bodies at a later period. Again, it is an interesting fact, that here a number of the tombstones that have been discovered bear the Cæcilian name, showing that this cemetery must have belonged to that _gens_ or clan. Not only so, but one is inscribed with that of Septimus Prætextatus Cæcilianus, a servant of God during thirty years. It will be remembered that Prætextatus was the name of the brother of Valerian, who was betrothed to Cæcilia, and it leads one to suspect that the families of Valerian and of Cæcilia were akin. The chapel or crypt contains frescoes. In the _luminare_ is painted a female figure with the hands raised in prayer. Beneath this a cross with a lamb on each side. Below are three male figures with the names Sebastianus, Curinus (Quirinus), and Polycamus. Sebastian is doubtless the martyr of that name whose basilica is not far off. Quirinus, who has the _corona_ of a priest, is the bishop and martyr of Siscia, whose body was brought in 420 to Rome. Of Polycamus nothing is known, save that his relics were translated in the ninth century to S. Prassede.