In addition, however, to the rectangular basilica, which was essentially the place of meeting for the transaction of the business of the Church, the Christian community early adopted a circular-formed edifice as a ceremonial or sacramental adjunct to the basilica. These were copied from the Roman tombs above described, and were in fact frequently built for the sepulchres of distinguished persons; but they were also used at a very early date as baptisteries, as well as for the performance of funereal rites. It does not appear that baptism, the marriage rites, or indeed any of the sacraments, were performed in the earliest ages in the basilica, though in after ages a font was introduced even into cathedrals. The rectangular church became ultimately the only form used. In the earlier ages, however, a complete ecclesiastical establishment consisted of a basilica, and a baptistery, independent of one another and seldom ranged symmetrically, though the tendency seems to have been to place the round church opposite the western or principal entrance of the basilica.
Though this was the case in the capital and other great cities, it was otherwise before the time of Constantine in the provinces. There the Christian communities existed as members of a religious sect long before they aspired to political power or dreamt of superseding the secular form of government by combination among themselves. In the remote parts of the Empire, in the earliest ages, they consequently built for themselves churches which were temples, or, in other words, houses of prayer, designed for and devoted wholly to the celebration of religious rites, as in the Pagan temples, and without any reference to the government of the community or the transaction of the business of the assembly. If any such existed in Italy or any other part of Europe, they either perished in the various persecutions to which the Christians were exposed when located near the seat of government, or they became hallowed by the memories of the times of martyrdom, and were rebuilt in happier days with greater magnificence, so that little or no trace of the original buildings now remains. So long, therefore, as our researches were confined to European examples, the history of Christian architecture began with Constantine; but recent researches in Africa have shown that, when properly explored, we shall certainly be able to carry the history of the early Christian style in that country back to a date at least a century before his time. In Syria and Asia Minor so many early examples have come to light that it seems probable that we may, before long, carry the history of Byzantine art back to a date nearly approaching that of the destruction of Jerusalem by Titus. It is, however, only so recently that the attention of ecclesiologists has been directed to the early examples of Christian architecture, that it is not yet possible to grasp completely the whole bearing of the subject; but enough is known to show how much the progress of research may modify the views hitherto entertained on the subject. Meanwhile too much attention can hardly be bestowed upon it, as it is by means of these early specimens of architectural art that we shall probably be best able to recover the primitive forms of the Christian liturgical observance.
One of the most ancient as well as interesting of the African churches which has yet been brought to light is that at Djemla. It is a simple rectangle, internally 92 ft. by 52, divided longitudinally with three aisles, the centre one of which terminates in a square cella or choir, which seems to have been enclosed up to the roof; but the building is so ruined that this cannot be known for a certainty. Though so exceptional, it is not difficult to see whence the form was derived. If we take such a plan, for instance, as that of the Maison Carré at Nîmes (Woodcut No. [187]), and build a wall round and put a roof over it, so as to make a building which was originally appropriated to external worship suitable for internal religious purposes, we should have exactly such a result as this. The cella must be diminished in extent, the pillars more widely spaced, and the front row converted into a wall in which the entrances would be usually placed. In this instance the one entrance, for some local reason, is lateral. The whole floor of the church is covered with a mosaic so purely classical in style of execution as to leave no doubt as to its early date.
390. Plan of Church at Djemla. Scale 50 ft. to 1 in.
391. Plan of Church at Announa. Scale 50 ft. to 1 in.
A more common form is shown in the annexed woodcut, representing a small church at Announa, likewise in Algeria, about 45 ft. square, divided into three aisles and with a projecting apse. If we turn to the plan of the Temple of Mars Ultor (Woodcut No. [186]), we see at once whence this form was derived. It only requires the lateral columns to be brought slightly forward to effect the requisite change. When the building was to be used by a congregation, and not merely for display, the pillars would require to be more widely spaced.
A third form, from Ibrim in Nubia, shows the peculiarity of the apse being internal, which became very fashionable in the Eastern, though not so much so in the Western, churches, but still sufficiently so to make its introduction at this early age worthy of notice. The building is small, being only 57 ft. in length externally, but is remarkable for being built with something of the solidity of the Egyptian edifices among which it stands.
The next example which it may be necessary to quote to make this early form intelligible, is that of the church of St. Reparatus, near Orleansville—the ancient Castellum Tingitanum. According to an inscription still existing, it was erected A.D. 252,[[258]] but the second apse seems to have been added at a later date, to contain the grave of the saint. As it now stands, it is a double-apsed basilica 80 ft. long by 52 broad, divided into five aisles, and exhibiting on a miniature scale all the peculiarities of plan which we have hitherto fancied were not adopted until some centuries later. In this instance both the apses are internal, so that the side-aisles are longer than the centre one, no portion of them appearing to have been cut off for chalcidica or vestries, as was very generally the case in this age.