Let me tell you what I think.
Ottomans ruled the world for more than 300 years, so they must be included. Arabs should also be included, because that land had played an important part in the history and its where Islam started.
I think either Byzantines or Greece should be eliminated, both are practically the same thing, its like adding Ottomans and Turks in the same time.
America? Netherlands? Countries with great history, starting from 4000 BC, right...
I say Byzantines get replaced by Fatimids, America replaced by Huns, and Netherlands replaced by Almoravids.
Rome isn't the largest empire the world has ever seen. The Golden Horde(Huns, for that matter) had all the land from pacific Russia to Rome itself, pope St. Leo I. talked with Attila and made him leave Rome, and the invasion was stopped. The "greatest" empire that world has ever seen was the Ottoman Empire, and usually American and European teachings today often leap from 1300 to 1700, when actually the Ottoman Empire was very powerful.
Weird thing, we call it the Ottoman Empire, but Ottomans never had Emperors, only Sultans
