Where did the Qur'an come from?

Islamic people believe that the Qur'an was given to the prophet Muhammad from Allah. The book was revealed to him over a period of 23 years.

Muhammad did not know about Allah when he was given the first part of the Qur'an, but he knew that he hated the fake idols that his people worshipped. He regularly went to a mountain called Jabal an-Nur (Mountain of Light) which was located outside of his home town of Makkah which was in Arabia. He used to go to the mountain to think about his beliefs - he wanted to know the truth and find the one true god. Allah chose Muhammad to be His "Last Messenger" to people on earth. One day Muhammad was on the mountain in a small cave called Cave Hira when an angel appeared to him and said, "READ". He had never learned to read, but the angel insisted. Muhammad asked, "What should I read?" The angel gave him a message from Allah, “Read in the Name of your Lord Who created humans from a clot of blood (embryo). Read for your Generous Lord. He is the One Who taught people with the pen what they didn’t know before.” He ran home to his wife and told her about the vision. However, from then on the angel, Jibra'il, visited him often and continued to reveal more of the Qur'an and teach him about Islam.