Constantine, sometimes (Heaven knows why) called Constantine the Great, was emperor. He was a terrible ruffian, but people of tender qualities could hardly hope to survive in that hard-fighting age. During a long and checkered career, Constantine had experienced many ups and downs. Once, when almost defeated by his enemies, he thought that he would try the power of this new Asiatic deity of whom everybody was talking. He promised that he too would become a Christian if he were successful in the coming battle. He won the victory and thereafter he was convinced of the power of the Christian God and allowed himself to be baptised. From that moment on, the Christian church was officially recognised and this greatly strengthened the position of the new faith. But the Christians still formed a very small minority of all the people, (not more than five or six percent,) and in order to win, they were forced to refuse all compromise. The old gods must be destroyed. For a short spell the emperor Julian, a lover of Greek wisdom, managed to save the pagan Gods from further destruction. But Julian died of his wounds during a campaign in Persia and his successor Jovian re-established the church in all its glory. One after the other the doors of the ancient temples were then closed. Then came the emperor Justinian (who built the church of Saint Sophia in Constantinople), who discontinued the school of philosophy at Athens which had been founded by Plato. That was the end of the old Greek world, in which man had been allowed to think his own thoughts and dream his own dreams according to his desires. The somewhat vague rules of conduct of the philosophers had proved a poor compass by which to steer the ship of life after a deluge of savagery and ignorance had swept away the established order of things. There was need of something more positive and more definite. This the Church provided. During an age when nothing was certain, the church stood like a rock and never receded from those principles which it held to be true and sacred. This steadfast courage gained the admiration of the multitudes and carried the church of Rome safely through the difficulties which destroyed the Roman state. There was however, a certain element of luck in the final success of the Christian faith. After the disappearance of Theodoric’s Roman-Gothic kingdom, in the fifth century, Italy was comparatively free from foreign invasion. The Lombards and Saxons and Slavs who succeeded the Goths were weak and backward tribes. Under those circumstances it was possible for the bishops of Rome to maintain the independence of their city. Soon the remnants of the empire, scattered throughout the peninsula, recognised the Dukes of Rome (or bishops) as their political and spiritual rulers.