Now how did it come to be that so many non-Arab countries and cultures ended up being called "Arab" countries? Why are non-Arabs from Moroccan Berbers to Egyptians to Syrians and Lebanese Phoenicians all called "Arabs" today? Well, let me tell you.
Outsiders, conquering Arabs, did what the Crusaders did, but with one big difference: the Muslim Arabs were much more succesful colonizers than the European Catholic colonizers. And you know what they say--the victor writes the history.