Islamic Worldmore religiously tolerant compared to their conquered peoples previous religion egalitarian religion typically taxed non-Muslims did not trade with non-Muslims did not allow non-Muslims to be rulers of their land. the Byzantine Worldvery religiously intolerant went after Zoroastrians went after Jews went after heretics especially anything they believed that didn't adhere to the Nicene Creed=heretical entire churches in Syria and Egypt declared heretical made people turn to Islam more egalitarian and tolerant
