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.
muhammed was born in mecca he died
Mecca
He was born in Makkah.
Prophet Muhammed (Peace be upon him) in Mecca (Kindom of Saudia Arabia).
Mecca
because he felt they did not believe him
He was born in Makka (English: Mecca)
Medina (Yathrib)
He went to Yathrib, present day Medina and established the first Islamic Community there.
2
the main preaches of prophet Muhammad is collected as Koran (Quran).