how long did rome rule the western world
- Rome really came into prominence by becoming an empire after the second Punic war which ended in 201 BC. The date given for the fall of the western part of the empire is 476 Aâ¦D. So you could say that Rome ruled the western world for about 676 years. This is just a ball park figure because Rome had been expanding to an extent, before the Punic wars.