FIG. 68.—ST. PAUL BEYOND THE WALLS. INTERIOR.
The basilica remained the model for ecclesiastical architecture in Rome, without noticeable change either of plan or detail, until the time of the Renaissance. All the earlier examples employed columns and capitals taken from ancient ruins, often incongruous and ill-matched in size and order. San Clemente (1084) has retained almost intact its early aspect, its choir-enclosure, baldaquin, and ambones having been well preserved or carefully restored. Other important basilicas are mentioned in the list of monuments on pages 118, 119.
RAVENNA. The fifth and sixth centuries endowed Ravenna with a number of notable buildings which, with the exception of the cathedral, demolished in the last century, have been preserved to our day. Subdued by the Byzantine emperor Justinian in 537, Ravenna became the meeting-ground for Early Christian and Byzantine traditions and the basilican and circular plans are both represented. The two churches dedicated to St. Apollinaris, S. Apollinare Nuovo (520) in the city, and S. Apollinare in Classe (538) three miles distant from the city, in what was formerly the port, are especially interesting for their fine mosaics, and for the impost-blocks interposed above the capitals of their columns to receive the springing of the pier-arches. These blocks appear to be somewhat crude modifications of the fragmentary architraves or entablatures employed in classic Roman architecture to receive the springing of vaults sustained by columns, and became common in Byzantine structures ([Fig. 73]). The use of external arcading to give some slight adornment to the walls of the second of the above-named churches, and the round bell-towers of brick which adjoined both of them, were first steps toward the development of the “wall-veil” or arcaded decoration, and of the campaniles, which in later centuries became so characteristic of north Italian churches (see Chapter XIII.). In Rome the campaniles which accompany many of the mediæval basilicas are square and pierced with many windows.
The basilican form of church became general in Italy, a large proportion of whose churches continued to be built with wooden roofs and with but slight deviations from the original type, long after the appearance of the Gothic style. The chief departures from early precedent were in the exterior, which was embellished with marble incrustations as in S. Miniato (Florence); or with successive stories of wall-arcades, as in many churches in Pisa and Lucca (see [Fig. 90]); until finally the introduction of clustered piers, pointed arches, and vaulting, gradually transformed the basilican into the Italian Romanesque and Gothic styles.
SYRIA AND THE EAST. In Syria, particularly the central portion, the Christian architecture of the 3d to 8th centuries produced a number of very interesting monuments. The churches built by Constantine in Syria—the Church of the Nativity in Bethlehem (nominally built by his mother), of the Ascension at Jerusalem, the magnificent octagonal church on the site of the Temple, and finally the somewhat similar church at Antioch—were the most notable Christian monuments in Syria. The first three on the list, still extant in part at least, have been so altered by later additions and restorations that their original forms are only approximately known from early descriptions. They were all of large size, and the octagonal church on the Temple platform was of exceptional magnificence.[16] The columns and a part of the marble incrustations of the early design are still visible in the “Mosque of Omar,” but most of the old work is concealed by the decoration of tiles applied by the Moslems, and the whole interior aspect altered by the wood-and-plaster dome with which they replaced the simpler roof of the original.
FIG. 69.—CHURCH AT KALB LOUZEH.