And another thing...

Many modern historians view the fall of the Empire due mainly to the fact the Emperors became Xian and ordered all the old Pagan temples and groves destoryed, alienating them from the general population who would no longer fight for the Empire. This can be seen is the use of the sword. When the majority of the army was Pagan, they used a Glado or short sword and were fierce and successful, when they became Xian, they use a longer sword and thought that with g-d on their side they would win battles.

Interesting.