The start of Islam is marked in the year 610, following the first revelation to the prophet Muhammad at the age of 40. Muhammad and his followers spread the teachings of Islam throughout the Arabian peninsula. ... The angel recites to him the first revelations of the Quran and informs him that he is God's prophet.

How did Islam start and spread?

Islam spread through military conquest, trade, pilgrimage, and missionaries. Arab Muslim forces conquered vast territories and built imperial structures over time. ... The caliphate—a new Islamic political structure—evolved and became more sophisticated during the Umayyad and Abbasid caliphates.

How did Islam develop?

How Islam Began. It was in the small desert town of Mecca, located in what is now Saudi Arabia and surrounded by the Byzantine and Sassanian empires, that Islam emerged in the early 7th century through revelations that Muslims believe were made to Islam's prophet, Muhammad, by the archangel Gabriel – Jibril in Arabic.