Rome was founded in 753 BC on the banks of the Tiber River between the Palatine and Capitoline Hills. The hills and river provided natural defenses and access to resources that made Rome an ideal site for a city. Rome grew to become the most powerful city in the Western world as the capital of a vast empire, ruling most of Europe and the Mediterranean for over 1000 years from the 1st century BC to the 5th century AD.