Modern science is not satisfied with the brief answers of past scholars to questions affecting the political lives of peoples, including: Why did so many peoples appear suddenly and fill the world with noise and greatness? Why did the star of these people decline after that greatness, and news of them ceased for several eras? How do gods, systems, and languages ​​appear, transform, and then die? Do these factors affect societies or are they influencing them? Why did some religions, such as Islam, suddenly spread even though other religions did not happen until many centuries ago? Why did Islam survive after its political authority disappeared, even though other religions such as Christianity and Buddhism were about to disappear? We do not miss answering such questions, but the explanations that science is satisfied with in its youth will not be satisfied in its old age.