About forty Muhammad began to develop prophetic characteristics like those of the Hebrew prophets twelve hundred years before him. He talked first to his wife of the One True God, and of the rewards and punishments of virtue and wickedness. There can be no doubt that his thoughts were very strongly influenced by Jewish and Christian ideas. He gathered about him a small circle of believers and presently began to preach in the town against the prevalent idolatry. This made him extremely unpopular with his fellow townsmen because the pilgrimages to the Kaaba were the chief source of such prosperity as Mecca enjoyed. He became bolder and more definite in his teaching, declaring himself to be the last chosen prophet of God entrusted with a mission to perfect religion. Abraham, he declared, and Jesus Christ were his forerunners. He had been chosen to complete and perfect the revelation of God’s will. He produced verses which he said had been communicated to him by an angel, and he had a strange vision in which he was taken up through the Heavens to God and instructed in his mission. AT PRAYER IN THE DESERT AT PRAYER IN THE DESERT _Photo: Lehnert & Landrock_ As his teaching increased in force the hostility of his fellow townsmen increased also. At last a plot was made to kill him; but he escaped with his faithful friend and disciple, Abu Bekr, to the friendly town of Medina which adopted his doctrine. Hostilities followed between Mecca and Medina which ended at last in a treaty. Mecca was to adopt the worship of the One True God and accept Muhammad as his prophet, _but the adherents of the new faith were still to make the pilgrimage to Mecca_ just as they had done when they were pagans. So Muhammad established the One True God in Mecca without injuring its pilgrim traffic. In 629 Muhammad returned to Mecca as its master, a year after he had sent out these envoys of his to Heraclius, Tai-tsung, Kavadh and all the rulers of the earth. LOOKING ACROSS THE SEA OF SAND LOOKING ACROSS THE SEA OF SAND _Photo: Lehnert & Landrock_ Then for four years more until his death in 632, Muhammad spread his power over the rest of Arabia. He married a number of wives in his declining years, and his life on the whole was by modern standards unedifying. He seems to have been a man compounded of very considerable vanity, greed, cunning, self-deception and quite sincere religious passion. He dictated a book of injunctions and expositions, the Koran, which he declared was communicated to him from God. Regarded as literature or philosophy the Koran is certainly unworthy of its alleged Divine authorship.