How might you account for the immense religious and political/military success of islam in its early centuries?

Islam varied greatly from Christianity and Buddhism since its founder was a religious figure as well as a political and military pioneer. In addition, from the start the Islamic community got itself constituted as a state. Along these lines, Islam did not create as plainly characterized a partition amongst church and state as did both Christianity and Buddhism. There were a few similitudes in their religious viewpoints: every one of the three religions were established by single historical figures who had intense religious experiences; each of the three give an unmistakable way to salvation; and each of the three announce the equality of all believers. however, Islam's origination of monotheism was more grounded than that of Christianity; and every religion was shaped to some extent by the social conventions in which it developed.