There is really little difference between these three religions. Jewish god in the bible orders the slaughter of heathen tribes, including women and children and orders sparing only virgins. 'Noble' Christians burned down the literary heritage of antiquity including the library of Alexandria. It was obviously Christianity that brought about the dark ages by eradicating Europe's ancient heritage, not the 'barbarians'. Muslims now do exactly the same - destroying ancient monuments etc. everything that doesn't fit their savage religion. The spread of Christianity in Europe was about as brutal as the spread of islam.