The Crucible of IslamLittle is known about Arabia in the sixth century, yet from this distant time and place emerged a faith and an empire that stretched from the Iberian peninsula to India. Today, Muslims account for nearly a quarter of the global population. A renowned classicist, G. W. Bowersock seeks to illuminate this obscure and dynamic period in the history of Islam exploring why arid Arabia proved to be such fertile ground for Muhammad's prophetic message, and why