was born about AD 570 in the city of Mecca, an important trading center in western Arabia. He was a member of the Hashim clan of the powerful Quraysh tribe. Because 's father, Abd Allah, died before he was born and his mother, Amina, when he was 6 years old, he was placed in the care of his grandfather and, after 578, of his uncle Abu Talib, who succeeded as head of the Hashim clan. At the age of about 25, Muhammad entered the employ of a rich widow, Khadijah, in her commercial enterprise. They were married soon after. Two sons, both of whom ....