CEVAP:

The two main empires which controlled the world were the Byzantine Empire, (330 CE - 1453 CE) in the west which was based in Constantinople and the final version of the mighty Roman Empire. The empire to the east of Mecca was the Sasanian Empire, or Persian Empire which was not the first one. The first Persian Empire, or Achaemenid Empire, ended in 330 BCE, when Alexander the Great defeated Darius III.