Muhammad (26 April 570 – 8 June 632) was the founder of Islam. In the Muslim tradition, Muhammad was a messenger and prophet of God. He was also a social reformer, diplomat, merchant, philosopher, orator, legislator, military leader, humanitarian and philanthropist. By the time of Muhammad’s death, most of the Arabian Peninsula had converted to Islam, and the tribes of Arabia had united into a single Muslim religious polity.
Whoever knows himself knows God.