Answer
the main preaches of prophet Muhammad is collected as Koran (Quran).
if he'd want u to preach, you'd be his prophet, unfortunately, Prophet Muhammad (PBUH) was the last prophets and there are no more prophets after him..
he was a prophet and a messenger. his duty was to bring in new followers and preach the teachings of allah
the church
Hegira started in 622 AD and when Muhammad had to move from Mecca to Medina to preach Islam.
He preached that life should be enjoyed and cherished and not destroyed by school and work.
Muhammad Ali, then Cassius Clay, was 19 years old and traveling to Chicago with his brother Rudy from Louisville to see Elijah Muhammad speak. There he introduced himself to Malcolm X who was also attending.
he did them in quiet meetings. after three years he called ISLAM in public
If you are asking about the prophet Muhammad, he began his preaching in year 610 AD, in Mecca (or Makkah) which is currently in Saudi Arabia.
Hazrat Muhammad SAW was born in Mecca. He started preaching Islam at the age of 40. The non-believers of Mecca turned against him. They made it very difficult for him and his fllowers to live in Mecca. He had to migrate to Madina to preach Islam over there.
Islam is the continuation of Judaism and Christianity. Hazrat Muhammad (SAW) is the last prophet of Islam. Like all the heavenly religions, Islam believes in ONENESS of Almighty Allah (God). Hazrat Muhammad (SAW) was ordained by Almighty Allah through Arch Angel Gabriel to preach the beliefs of Islam.