Because the Koran is the direct word of God you dumbfucks. God recited the entire Koran to Mohammad so he could transcribe it while he was hiding on in a cave. Everybody knows this
Also God wrote down the book of Mormon on gold plates and an ancient Hebrew guy buried it in what is now Manchester New York. He was the last "white" guy and everyone else had been killed by the darkies. Everybody knows this you fucking ass wipes.