Answer: The religion of Mohammed before Islam was the Hanafia Islam, the relegion of Ibrahim peace be upon him i.e. the worship of one Creator "Allah". There were few more people believing in the religion on Ibrahim in Arabia at that time; the relegion was taught by Ismael the Son of Ibrahim...but most people departed from the teachings of Ismael with the passage of time, until the original relegion was restored by Islam and the Quran.
Muhamed was the prophet of Islam who founded the religion of Islam.
Islam only has one true religion, the other one is like group of people who think that quran is bring by ali not muhamed ... but both of them have the same holy book quran.
Elijah Muhammad was the leader of the Nation of Islam until 1975.
Islam has only one profit is "Muhamed" (صلى الله علبه وسلم"
Islam
It was animism.
Islam
jews
Islam was founded by God on start of universe creation. Refer to question below.
Islam
Jewish
622 AD was the year that Muhamed officially established the Muslim religion.