Synopsis This book attempts to give the history of the evolution of Islam as a world-religion; of its rapid spread and the remarkable hold it obtained over the conscience and minds of million of people within a short space of time. The impulse it gave to the intellectual development of the human race is generally recognized. But its great work in the uplifting of humanity is either ignored or not appreciated; nor are its rationale, its ideals and its aspirations properly understood. The author has endeavored to elucidate its true place in the history of religions.