After Cæsar’s conquest many of the Romans had remained in Gaul, and had built and conquered cities, and lived under Roman laws. They taught the Gauls to speak Latin, and organized many schools and colleges among them. The Gauls adopted the Roman dress and religion. The religion of the ancient Gauls had been taught to the people by priests, called Druids. Druidism was a confusion of mingled ideas of Oriental dreams and traditions, borrowed from the mythologies of the East and the North; and although it was degraded by barbaric practices such as human sacrifices in honor of the gods or of the dead, it possessed one germ of truth, for the Druids believed in the immortality of the soul. Their priests were old and wise men, who had studied often for twenty years before they were considered wise enough to become “Men of the Oak,” as the chief Druids were called. They made laws for the people and settled questions of dispute. Once every year the Druids went out to look for the mistletoe, which they considered a sacred plant. When a mistletoe was found growing upon an oak, the people came from all parts of the country and stood around the tree. Then a Druid, clothed in white, climbed up the oak-tree, and cut off the sacred mistletoe with a golden sickle, and the much prized plant was caught by the other Druids below, in a white cloth, and was carried away to be preserved as a great treasure. But the Gauls living in those provinces conquered by the Romans, had given up their old Druidical religion, and adopted that of their conquerors, which was no improvement, for it was also a paganism, and was such a mass of superstition and idolatry, derived from Grecian mythology and old traditions, that it did not even possess the vital force of the Druidical belief. For the Druids worshipped, as they thought, living deities, while the Græco-Roman paganism was a dead religion, with only dead gods, buried beneath their still standing altars. Such were the superstitions and false religions with which the Christians of the early centuries had to contend in laboring to convert the then known world to the worship of the one true and living God and His Son Jesus Christ, who had already lived his holy life upon this earth, and given himself a sacrifice for the salvation of mankind. Already the disciples of Christ had founded Christian churches in Asia Minor and Palestine, and many of them had died as martyrs for the faith. St. Paul had preached at Athens and at Rome, and having finished his glorious work he had received his crown of martyrdom. And all down these early centuries teachers had been sent out by the Christian churches, to endeavor to convert the heathen world around to a belief in the one true and only religion which could secure the salvation of the immortal soul. The Roman emperors had all persecuted the Christians and sought to uphold paganism. But when A.D. 312, the Emperor Constantine declared himself a Christian, “paganism fell, and