Religion is a prime factor in the history. Spreading of a religion depends on various factors.
The main factor of spread of Islam was conquering of non-Muslims religion people by the Muslim community. Muslims begin to conquer the Syria and Persia.
The Muslims captured the Jerusalem religion followers. Islam also spread through military conquest, trading, pilgrimage, and missionaries. Arab Muslim forces also conquered vast territories all over the world. Many Islam religion spiritual places were built. This made the belief of no Muslims to start believing in the religion and to get faith in it. This lead to vast spread of the Muslim religion.
