It's also a matter of prestige. Rome had dominated the world for so long that the term Roman Empire had a lot of weight for centuries after the collapse of both the Western and Eastern Roman Empires. Which is why the term was revived in the West as the Holy Roman Empire in the 10th century (neither holy, Roman nor an empire as the gag went) and survived into the 19th. Words matter.
Last edited by aldiboronti; 08-24-2013 at 10:55 AM.