Wow. Totally not hypocritical. If Persia can be divided into Achaemenids and Sassanids/Afsharids..., then the Byzantines have a right to jump in!
That's my point. Persia should have the same privilege of Rome to have it's Byzantine period as a separete civ.
Or at least, if not a separate civ, an alt leader from Sassanid dinasty.
And as far I know, was the Sassanids the main rival of Byzantine. Make a lot of sense they even come together at a DLC with some scenario about they.
Maybe a cool scenario to have Byzantine and Sassanid-Persia is the expansion of Islam, so also could have the Omíada caliphate.
By the way, Arabia is other civ who deserves to become a separate civ to Omíadas, Abássidas and Fatímidas.
India also should be divided in several civs.
Just China I think don't need to be divided in several civs.
But if we start to separate the civs, the game should have a 100 civs, what is very unlikely.
Privilege? I don't understand the use of the term in this regard. And, again, why are you referring to the two cases as if they were directly equivalent?
Privilege, again, is the right word.
It's totally white privilege the most important empire of Europe had it's own history divided in two civs.
Byzantine can have it's difference from ancient Rome, but it's obvious a continuation of the same state, as other users already spoke, there was no revolution, no war, nothing in the transition between Rome and Byzantium.
Also, if we still having two civs to Rome and Byzantium, Constantine the great could be a dual leader for it's civilization.