[inglor_cz]

Yeah, studying history without questions is a chore.

A good question might be: "Why did the Roman empire hold together that long and survived several serious crises, even though many other empires exploded and disintegrated in their first crisis ever, as the subjugated nations rushed for exits?"

That question has no definite answer, but boy (or girl), you learn a lot of fascinating history while trying to answer it.