§ XXXI. The Ducal residence was removed to Venice in 809, and the body of St. Mark was brought from Alexandria twenty years later. The first church of St. Mark's was, doubtless, built in imitation of that destroyed at Alexandria, and from which the relics of the saint had been obtained. During the ninth, tenth, and eleventh centuries, the architecture of Venice seems to have been formed on the same model, and is almost identical with that of Cairo under the caliphs,[22] it being quite immaterial whether the reader chooses to call both Byzantine or both Arabic; the workmen being certainly Byzantine, but forced to the invention of new forms by their Arabian masters, and bringing these forms into use in whatever other parts of the world they were employed. To this first manner of Venetian architecture, together with vestiges as remain of the Christian Roman, I shall devote the first division of the following inquiry. The examples remaining of it consist of three noble churches (those of Torcello, Murano, and the greater part of St. Mark's), and about ten or twelve fragments of palaces. § XXXII. To this style succeeds a transitional one, of a character much more distinctly Arabian: the shafts become more slender, and the arches consistently pointed, instead of round; certain other changes, not to be enumerated in a sentence, taking place in the capitals and mouldings. This style is almost exclusively secular. It was natural for the Venetians to imitate the beautiful details of the Arabian dwelling-house, while they would with reluctance adopt those of the mosque for Christian churches. I have not succeeded in fixing limiting dates for this style. It appears in part contemporary with the Byzantine manner, but outlives it. Its position is, however, fixed by the central date, 1180, that of the elevation of the granite shafts of the Piazetta, whose capitals are the two most important pieces of detail in this transitional style in Venice. Examples of its application to domestic buildings exist in almost every street of the city, and will form the subject of the second division of the following essay.