Then followed the schism of the Iconoclasts, which distracted the Church for more than one hundred years, under Leo III., the Isaurian, and his immediate successors. Such were the extravagances of superstition to which the image-worship had led the excitable Orientals, that, if Leo had been a wise and temperate reformer, he might have done much good in checking its excesses; but he was himself an ignorant, merciless barbarian. The persecution by which he sought to exterminate the sacred pictures of the Madonna, and the cruelties exercised on her unhappy votaries, produced a general destruction of the most curious and precious remains of antique art. In other respects, the immediate result was naturally enough a reaction, which not only reinstated pictures in the veneration of the people, but greatly increased their influence over the imagination; for it is at this time that we first hear of a miraculous picture. Among those who most strongly defended the use of sacred images in the churches, was St. John Damascene, one of the great lights of the Oriental Church. According to the Greek legend, he was condemned to lose his right hand, which was accordingly cut off; but he, full of faith, prostrating himself before a picture of the Virgin, stretched out the bleeding stump, and with it touched her lips, and immediately a new hand sprung forth "like a branch from a tree." Hence, among the Greek effigies of the Virgin, there is one peculiarly commemorative of this miracle, styled "the Virgin with three hands." (Didron, Manuel, p. 462.) In the west of Europe, where the abuses of the image-worship had never yet reached the wild superstition of the Oriental Christians, the fury of the Iconoclasts excited horror and consternation. The temperate and eloquent apology for sacred pictures, addressed by Gregory II. to the Emperor Leo, had the effect of mitigating the persecution in Italy, where the work of destruction could not be carried out to the same extent as in the Byzantine provinces. Hence it is in Italy only that any important remains of sacred art anterior to the Iconoclast dynasty have been preserved.[1] [Footnote 1: It appears, from one of these letters from Gregory II, that it was the custom at that time (725) to employ religious pictures as a means of instruction in the schools. He says, that if Lee were to enter a school in Italy, and to say that he prohibited pictures, the children would infallibly throw their hornbooks (_Ta volexxe del alfabeto_) at his head.--v. _Bosio_, p. 567.]