The Roman Empire ruled the world for 500 years. Nothing last forever.
Sorry, OT but I've got to correct your statement. The Roman Empire was founded circa 500 BC and lasted in one form or another until the fall of Byzantium, the capital of the "Eastern Empire" in 1453 AD. That's just a little shy of 2000 years and while after the fall of Rome and the Western Empire they may have no longer "ruled the world" for quite a while after that the "Eastern Empire" continued to rule a good part of it.
