Great quiz! Just out of curiosity, why did you include the "Kingdom of Vandals and Alans"? I don't know what that is (well, I've heard of the Vandals as one of the groups that sacked Rome, but don't know much beyond that), so I'd love it if you could enlighten me!
The Alans were an Iranian people that formed a pretty important part of that kingdom. They originally settled all the way in the Caucasus region and migrated all the way to western Europe, even setting up a short-lived "Kingdom of the Alans" in what is now Spain and Portugal.