CHAPTER III.
CIRCULAR CHURCHES.
CONTENTS.
Circular Churches—Tomb of Sta. Costanza—Churches at Perugia, Nocera, Ravenna, Milan—Secular Buildings.
In addition to the Pagan basilicas and temples, from which the arrangements of so many of the Christian edifices were obtained, the tombs of the Romans formed a third type, from which the forms of a very important class of churches were derived.
The form which these buildings retained, so long as they remained mere sepulchres appropriated to Pagan uses, has been already described (pp. [342] to [346]). That of Cæcilia Metella and those of Augustus and Hadrian were what would now be called “chambered tumuli;” originally the sepulchral chamber was infinitesimally small as compared with the mass, but we find these being gradually enlarged till we approach the age of Constantine, when, as in the tombs of the Tossia Family, that called the Tomb of Helena (Woodcut No. [227]) and many others of the same age, they became miniature Pantheons. The central apartment was all in all; the exterior was not thought of. Still they were appropriated to sepulchral rites, and these only, so long as they belonged to Pagan Rome. The case was different when they were erected by the Christians. No association could be more appropriate than that of these sepulchral edifices, to a religion nursed in persecution, and the apostles of which had sealed their faith with their blood as martyrs; and when the Sacrament for the dying and the burial service were employed, it was in these circular churches that it was performed. But besides the viaticum for the departing Christian, the Church provided the admission sacrament of baptism for those who were entering into communion, and this was, in early days at least, always performed in a building separate from the basilica. It would depend on whether marriage was then considered as a sacrament or a civil contract, whether it was celebrated in the basilica or the church; but it seems certain that the one was used almost exclusively as the business place of the community, the other as the sacramental temple of the sect. This appears always to have been the case, at least when the two forms existed together, as they almost always did in the great ecclesiastical establishments of Italy. When the church was copied from a temple, as in the African examples above described, it is probable it may have served both purposes. But too little is known of the architecture of this early age, and its liturgies, to speak positively on the subject.
The uses and derivation of these three forms of churches are so distinct that it would be extremely convenient if we could appropriate names to distinguish them. The first retains most appropriately the name of basilica, and with sufficient limitation to make it generally applicable. The word ecclesia, or église, would equally suffice for the second but that it is not English, and has been so indiscriminately applied that it could not now be used in a restricted sense. The word kirk, or as we soften it into church, would be appropriate to the third,[[286]] but again it has been so employed as to be inapplicable. We therefore content ourselves with employing the words Basilica, Church, and Round Church, to designate the three, employing some expletive when any confusion is likely to arise between the first two of the series.
The most interesting feature of the early Romanesque circular buildings is that they show the same transitional progress from an external to an internal columnar style of architecture which marked the change from the Pagan to the Christian form of sacred edifice. It is perhaps not too much to assert that no ancient classic building of circular form has any pillars used constructively in its interior.[[287]] Even the Pantheon, though 143 ft. 6 in. in diameter, derives no assistance from the pillars that surround it internally—they are mere decorative features. The same is true of the last Pagan example we are acquainted with—the temple or tomb which Diocletian erected in his palace at Spalato (Woodcut No. [194]). The pillars do fill up the angles there, but the building would be stable without them. The Byzantine architects also generally declined to avail themselves of pillars to support their domes, but the Romanesque architects used them almost as universally as in their basilicas.
Another very striking peculiarity is the entire abandonment of all external decoration. Roman circular temples had peristyles, like those at Tivoli (Woodcut No. [193]) and that of Vesta in Rome. Even the Pantheon is as remarkable for its portico as its dome, so is that known as the Torre dei Schiavi,[[288]] but it is only in the very earliest of the Christian edifices that we find a trace of the portico, and even in them hardly any attempt at external decoration. The temples of the Christians were no longer shrines to contain statues and to which worship might be addressed by people outside, but had become halls to contain the worshippers themselves while engaged in acts of devotion.
The tomb of the Empress Helena (Woodcut No. [227]) is one of the earliest examples of its class. It has no pillars internally, it is true, but it likewise has none on the exterior—the transition was not then complete. The same is the case with the two tombs on the Spina of the Circus of Nero (Woodcut No. [396]). They too were astylar, and their external appearance was utterly neglected.
