Comment by zeristor
Don’t forget the Byzantine Empire was the continuation of the Roman Empire.
I’m not sure if they still SPQR’d though.
Update: it appears to have fallen out of favour by 300
https://www.reddit.com/r/AskHistorians/comments/1jdrpz/did_t...
From a comment from a 12 year old Reddit post, 12 years being 0.5% of the span of the Roman Empire.