The religion splitting into two major branches, the shiite and the sunni.
Had the most productive economy in the world.
The correct answer is Ravenna.
That is because Ravenna was a city that was reconquered by the Byzantine empire after it originally fell to the Ostrogoth when the fall of the Western Roman Empire occurred. It was a capital for western Romans and for the Ostrogoth, but it wasn't for the Byzantine people who had their own capitol even after they reconquered it.
Answer: the muthafuxin answer is "D" STANDS for dixk
Explanation: BECAUSE THATS THE ANSWER NOT Back the heck up!!!!!!!!!!!!!!!