> Article aside, an Empire that manages to last hundreds of years (1100+ in their case, and even more depending how you calculate it) must be doing quite a few

> Article aside, an Empire that manages to last hundreds of years (1100+ in their case, and even more depending how you calculate it) must be doing quite a few things right. I think it's fairest to calculate it from the founding of Rome (21 Apr 753 BC) to the fall of Constantinople (29 May AD 1453): 2,205 years. In that time it went from a kingdom to a republic to an empire, but the Roman government continued in one form or another.