You have called me a vandal and told me to open history books I have called you silly I expect an apology for your rudeness If you can bring a source citing that their ethnicity is often confused perhaps we can include it in the start but we may still not be able to mention it For now we are obligated to follow the Manual of Style Historically there was a confusion if Arab Muslim and all those groups were the same thing That is an old Orientalist literature As early as Gibbon was see it stopping  Their contributions were global like Jackie Chan not to just Iranian civilization