The Roman Empire lasted approximately 1,480 years if considering its traditional start with Augustus Caesar's rule in 27 BC until the fall of the Eastern Roman Empire (Byzantine Empire) in 1453 AD. The Western Roman Empire lasted from 27 BC until its collapse in 476 AD, while the Eastern Roman Empire continued until Constantinople fell in 1453 AD
. To summarize:
- The Roman Empire began in 27 BC when Augustus became the first emperor.
- The Western Roman Empire ended in 476 AD with the deposition of Romulus Augustulus.
- The Eastern Roman Empire (Byzantine Empire) lasted until 1453 AD when Constantinople fell.
Thus, the unified Roman Empire lasted about 500 years (27 BC to 476 AD), but the Eastern continuation extended the empire's existence for nearly a millennium more, totaling roughly 1,480 years from 27 BC to 1453 AD
