Conventional wisdom maintains that the differences between Islam and Christianity are irreconcilable. Pre-eminent Middle East scholar Richard W. Bulliet disagrees, and in this fresh, provocative book he looks beneath the rhetoric of hatred and misunderstanding to challenge prevailing-and misleading-views of Islamic history and a 'clash of civilizations.' These sibling societies begin at the same time, go through the same developmental stages, and confront the same internal challenges. Yet as Christianity grows rich and powerful and less central to everyday life, Islam finds success around the globe but falls behind in wealth and power. Modernization in the nineteenth century brings in secular forces that marginalize religion in political and public life. In the Christian world, this simply furthers a process that had already begun. In the Middle East this gives rise to the tyrannical governments that continue to dominate. Bulliet argues that beginning in the 1950s American