Catastrophe of the Roman Empire

The wikipedia and I agree with each other. I agree that the reason many empires such as the Roman Empire declined because of various events that plagued it. Events such as invaders and disease led to their downfall. As stated by J.B. Bury, he says, "The gradual collapse of the Roman power...was the consequence of a series of contigent events." Besides the various events like diseases, the Roman's greed for power and land is what also made their empire more unstable. With the amount of land that they controlled, it was nearly impossible to keep all places stable.