"There would have been no established Byzantine or Roman Christianity if the faith had not been spread and maintained and enforced by every kind of violence and cruelty and coercion. To take Islam's own favorite self-pitying example: It was the Catholic crusaders who sacked and burned Christian Byzantium on their way to Palestine—and that was only after they had methodically set about the Jews, so the Muslim world was actually only the third victim of this barbarity."