In the given time frame of 632-750, Islam rose as a religion and spread out very quickly to a very large territory on three continents, thus becoming one of the biggest religion in the world by the number of its followers. Islam in this period spread (by some accepted willingly, while some were forced to adopt it as their religion) throughout most of the Middle East, most of Central Asia, east to the northwestern part of India, throughout North Africa, and on Spanish soil in Europe.