The Muslims enslaved, forcefully converted, or killed the Arabs. Oh, I get it. That big pile of sand called "Saudi Arabia" is a Potemkin village, full of Muslims disguised as Arabs. Well, the things you learn on FR ...
Do a timeline on the Arabs. Put in the establishment of the Arab Culture. Put in the important discoveries such as algebra. Put in the establishment of the Islamic Faith. You can stop right there. The timeline ends.