THE PROPHET (570-632) During the month of Ramadan in 610 C.E., an Arab business-man had an experience that changed the history of the world. Every year at this time, Muhammad ibn Abdallah used to retire to a cave on the summit of Mount Hira, just outside Mecca in the Arabian Hijaz, where he prayed, fasted and gave alms to the poor. He had long been worried by what he perceived to be a crisis in Arab society. In recent decades his tribe, the Quraysh, had become rich by trading in the surrounding countries. Mecca had become a thriving mercantile city, but in the aggressive stampede for wealth some of the old tribal values had been lost.