Islam is unusual in that it's the only one of the great world religions which was born inside recorded history. That there's an enormous amount of factual historical record about the life of a prophet and about social conditions in Arabia at that time. So it's possible to look at the origin of Islam in a scholarly way.
Salman RushdieWhenever someone who knows you disappears, you lose one version of yourself. Yourself as you were seen, as you were judged to be. Lover or enemy, mother or friend, those who know us construct us, and their several knowings slant the different facets of our characters like diamond-cutter's tools. Each such loss is a step leading to the grave, where all versions blend and end.
Salman Rushdie