When did the Roman Empire stop being the Roman Empire

[sonic]

There's "Romania" too. In fact the Romanian language derives from Latin. An amazing degree of Latinisation for a region the Romans only controlled for 150 years.
Must have plenty of colonii in that one!

They call themselves "Romans" and their language is derived from Latin. What more could you ask for?

The only difficulty with these concepts is that they rely on people's perceptions of themselves. What people perceive as being true isn't necessarily fact.

After all, I am Napoleon Bonapart, so the First Republic isn't over, so why is there a Second and a Third Republic??