At the age of 40, Muhammad came to the conclusion that the superstitious polytheism of the Arabs was a mistake and that there was only one God (Ala) to be worshiped. Then (year 610) he announced that he was the envoy of God, as Abraham, Moses, and Jesus of Nazareth, but that he (Muhammad) was the greatest of all. He attracted followers, but also enemies the year 622 after the death of Jadicha and Abu Talib, he fled with a large group of armed proselytes to the neighboring city of Medina. This migration is known as the Hegira and is considered the first year of the reign of Muhammad as a secular ruler as well as a religious leader, and the beginning of the Muslim calendar.
