Julian tried to bring back heathen customs, and to have the old gods worshipped again; but he was killed in an expedition against the Persians, and soon after his time the old idol-worship was quite forgotten. Every city had a Bishop and clergy, and the Bishops of each division of the empire were under a great ruling Bishop, who was called a Patriarch. Greece was under the Patriarch of Constantinople. The Greek churches were made as like the pattern of the temple at Jerusalem as they could be. The end which represented the Holy of Holies, and had the altar in it, was veiled, and enclosed within what were called the Royal Gates, and these were only opened at times of celebrating the Holy Communion. This end was raised steps, and the Holy Scriptures and sermon were spoken to the people from the front of the Royal Gates. The pavement was of rich marble, and the ceiling, which was generally vaulted, was inlaid with coloured stones, making pictures in what is called Mosaic, because thus the stones were set by Moses in the High Priest’s vestment. The clergy wore robes like those of the priests, and generally had flowing hair and beards, though in front the hair was cut in a circlet, in memory of our Lord’s crown of thorns. Now that everyone had become Christian, and bad or worldly people were not afraid to belong to the Church for fear of persecution, there was often sin and evil among them. Many who grieved at this shut themselves up from the world in the most lonely places they could find—little islands, deep woods, mountain tops, or rocks, and the like. When they lived alone they were called hermits, when there were many together they were called monks, and the women who thus lived were nuns. Many such monasteries there were in Greece, especially one upon Mount Athos—that peninsula that Xerxes tried to cut off—and most of these have continued even to our own time.