Sorry, I wasn’t clear on a crucial point. There was continuity. While the other states that we call “successor states” were founded by foreigners who conquered or were granted parts of the Roman Empire and who adopted some elements of Roman culture, the “Byzantine Empire” was just a division of the Roman Empire that lived on after the barbarian invasions. That part had been speaking Greek since the beginning, and was already Christan by then, just like the Western half.
For the Eastern Roman Empire, there was no title to take, because they already had the Roman title. For the Turks, maybe, I’d like to know why you think so. I don’t know enough. My initial assumption would be that they took it simply because they conquered the Romans, and their territory, and wanted to give their rule legitimacy before the Roman people.
I agree.
Interesting, I didn’t know.
Thank you for your perspective and the context.