Technically the work begins to decline from the beginning in proportion as painting was removed from the knowledge of the ancient world. About the fifth century the figure grew heavy and stiff. A new type began to show itself. The Roman toga was exchanged for the long liturgical garment which hid the proportions of the body, the lines grew hard and dark, a golden nimbus appeared about the head, and the patriarchal in appearance came into art. The youthful Orphic face of Christ changed to a solemn visage, with large, round eyes, saint-like beard, and melancholy air. The classic qualities were fast disappearing. Eastern types and elements were being introduced through Byzantium. Oriental ornamentation, gold embossing, rich color were doing away with form, perspective, light-and-shade, and background. [Illustration: FIG. 19.--CHRIST AS GOOD SHEPHERD. MOSAIC, RAVENNA, FIFTH CENTURY.] The color was rich and the mechanical workmanship fair for the time, but the figure had become paralytic. It shrouded itself in a sack-like brocaded gown, had no feet at times, and instead of standing on the ground hung in the air. Facial expression ran to contorted features, holiness became moroseness, and sadness sulkiness. The flesh was brown, the shadows green-tinted, giving an unhealthy look to the faces. Add to this the gold ground (a Persian inheritance), the gilded high lights, the absence of perspective, and the composing of groups so that the figures looked piled one upon another instead of receding, and we have the style of painting that prevailed in Byzantium and Italy from about the ninth to the thirteenth century. Nothing of a technical nature was in its favor except the rich coloring and the mechanical adroitness of the fitting. EARLY CHRISTIAN PAINTING: The earliest Christian painting appeared on the walls of the Catacombs in Rome. These were decorated with panels and within the panels were representations of trailing vines, leaves, fruits, flowers, with birds and little genii or cupids. It was painting similar to the Roman work, and had no Christian significance though in a Christian place. Not long after, however, the desire to express something of the faith began to show itself in a symbolic way. The cups and the vases became marked with the fish, because the Greek spelling of the word "icthus" gave the initials of the Christian confession of faith. The paintings of the shepherd bearing a sheep symbolized Christ and his flock; the anchor meant the Christian hope; the phoenix immortality; the ship the Church; the cock watchfulness, and so on. And at this time the decorations began to have a double meaning. The vine came to represent the "I am the vine" and the birds grew longer wings and became doves, symbolizing pure Christian souls.