I think you misspelled Mohammedanism. I think the correct spelling is Mohammedemonicism. I am sure the Islamo Fascists in their own language use fewer letters and when spoken it sounds a little like someone barfing up pea soup. You have to spin your head around a little when you do it.
Let's put it this way. It's one heck of a mixed up pagan cult. They couldn't be bothered with putting the Koran in chronological order. That's how the "holy" oral traditions of primitive tribes are. Time line and continuity mean nothing while legend means everything.