Mohammed decided to be the Moses of the Arab people. He could not well be a prophet and a camel-driver at the same time. So he made himself independent by marrying his employer, the rich widow Chadija. Then he told his neighbours in Mecca that he was the long-expected prophet sent by Allah to save the world. The neighbours laughed most heartily and when Mohammed continued to annoy them with his speeches they decided to kill him. They regarded him as a lunatic and a public bore who deserved no mercy. Mohammed heard of the plot and in the dark of night he fled to Medina together with Abu Bekr, his trusted pupil. This happened in the year 622. It is the most important date in Mohammedan history and is known as the Hegira—the year of the Great Flight. In Medina, Mohammed, who was a stranger, found it easier to proclaim himself a prophet than in his home city, where every one had known him as a simple camel-driver. Soon he was surrounded by an increasing number of followers, or Moslems, who accepted the Islam, “the submission to the will of God,” which Mohammed praised as the highest of all virtues. For seven years he preached to the people of Medina. Then he believed himself strong enough to begin a campaign against his former neighbours who had dared to sneer at him and his Holy Mission in his old camel-driving days. At the head of an army of Medinese he marched across the desert. His followers took Mecca without great difficulty, and having slaughtered a number of the inhabitants, they found it quite easy to convince the others that Mohammed was really a great prophet. From that time on until the year of his death, Mohammed was fortunate in everything he undertook. There are two reasons for the success of Islam. In the first place, the creed which Mohammed taught to his followers was very simple. The disciples were told that they must love Allah, the Ruler of the World, the Merciful and Compassionate. They must honour and obey their parents. They were warned against dishonesty in dealing with their neighbours and were admonished to be humble and charitable, to the poor and to the sick. Finally they were ordered to abstain from strong drink and to be very frugal in what they ate. That was all. There were no priests, who acted as shepherds of their flocks and asked that they be supported at the common expense. The Mohammedan churches or mosques were merely large stone halls without benches or pictures, where the faithful could gather (if they felt so inclined) to read and discuss chapters from the Koran, the Holy Book. But the average Mohammedan carried his religion with him and never felt himself hemmed in by the restrictions and regulations of an established church. Five times a day he turned his face towards Mecca, the Holy City, and said a simple prayer. For the rest of the time he let Allah rule the world as he saw fit and accepted whatever fate brought him with patient resignation.