The Start Date Of My Religion - Devdutt Pattanaik Historians say that Islam started 1,400 years ago, with the rise of the Prophet Muhammad. However, Muslims will say that Islam started when Allah created the world and gave his laws to the first prophet, Adam. Prophet Muhammad is the last of the long list of prophets that includes Noah, Moses and Jesus. But, the creation of the world by God is not considered a historical fact. Historians will dismiss it as religious truth, or myth, or imaginary, not scientific truth or history.