Why did Muhammad find the religion of Islam. How and why was the religion able to spread so rapidly?

Answer 1

http://www.historyforkids.org/learn/islam/history/mohammed.htm

http://history-world.org/islam4.htm

http://en.wikipedia.org/wiki/Spread_of_Islam

Answer 2

Muhammad was a trader. He traveled everywhere which made it easy for his religion to spread because he brought it with wherever he went.