in Early Medieval Christian art. A number of luxury pieces of gold glass from the later Roman period have Jewish motifs. Several Hellenistic-style floor mosaics have also been excavated in synagogues from Late Antiquity in Israel and Palestine, especially of the signs of the Zodiac, which was apparently acceptable in a low-status position on the floor. Some, such as that at Naaran, show evidence of a reaction against images of living creatures around 600 CE. The decoration of sarcophagi and walls at the cave cemetery at Beit She'arim shows a mixture of Jewish and Hellenistic motifs. However, for a period of several centuries between about 700 and 1100 CE there are scarcely any survivals of identifiably Jewish art. Middle Age Rabbinical and Kabbalistic literature also contain textual and graphic art, most famously illuminated haggadahs such as the Sarajevo Haggadah, and other manuscripts like the Nuremberg Mahzor. Some of these were illustrated by Jewish artists and some by Christians; equally some Jewish artists and craftsmen in various media worked on Christian commissions. Outside of Europe, Yemenite Jewish silversmiths developed a distinctive style of finely wrought silver that is admired for its artistry. Johnson again summarizes this sudden change from a limited participation by Jews in visual art (as in many other arts) to a large movement by them into this branch of European cultural life: Again, the arrival of the Jewish artist was a strange phenomenon. It is true that, over the centuries, there had been many animals (though few humans) depicted in Jewish art: lions on Torah curtains, owls on Judaic coins, animals on the Capernaum capitals, birds on the rim of the fountain-basis in the 5th century Naro synagogue in Tunis; there were carved animals, too, on timber synagogues in eastern Europe – indeed the Jewish wood-carver was the prototype of the modern Jewish plastic artist. A book of Yiddish folk-ornament, printed at Vitebsk in 1920, was similar to Chagall's own bestiary. But the resistance of pious Jews to portraying the living human image was still strong at the beginning of the 20th century. There were few Jewish secular artists in Europe prior to the Emancipation that spread throughout Europe with the Napoleonic conquests. There were exceptions, and Salomon Adler was a prominent portrait painter in 18th-century Milan. The delay in participation in the visual arts parallels the lack of Jewish participation in European classical music until the nineteenth