Book excerpt: In World History, History of Islam is a glorious chapter. In fact, Muslim History involves the history of the Islamic faith as a religion and as a social institution. Through various periods, Islam made many a long stride and its influence spread far-off over the globe. Apart from religion, Muslims made considerable contribution in areas, like philosophy, literature, arts, law, economy, science, medicine and commerce etc. At the academic level, Muslim philosophers, educationists and experts of Islamic law have made great contributions. The evolution of Islam has impacted the political, economic and military history of an enormous geographical region. A century after the demise of Prophet Muhammad (Pbuh) the, Islamic empire extended from the Atlantic Ocean in the west to Central Asia in the east. Islamic civilization gave rise to many centers of culture and science and produced notable philosophers, scientists, astronomers, mathematicians, doctors and nurses, during the Golden Age of Islam. In today's world, Islam is one of the major religions and perhaps there is hardly any corner of the world, where Muslims are not found. History of Islam is a vast subject. Here it is in a concise form. This modest work, a comprehensive book in one cover, is an effort in the direction of recording the history of Islam in nutshell, authentically. This excellent book is an asset for all scholars and academics in all spheres of learning.