Answer:
The Umayyad Emirate, the Abbasid Caliphate, and the Ottoman Empire all practiced Islam.
The Byzantine empire's state religion was Orthodoxy meanwhile its sisters empire, the Western Roman Empire, followed Catholicism (based on the year).
Answer:
Explanation:
Sometimes a country will put up trade barriers to punish anouther country. The rich set high barriers. I believe it was because lower class couldn't pay the high barriers they had.