How long did the Roman Empire last?
It lasted from 1204 until 1437.
The Roman empire lasted about 2,046 years! The Empire was divided into two parts in 270 AD, with each part of the empire being called an “empire” — the Western Roman Empire and the Eastern Roman Empire. These two empires continued to exist on their own for centuries until they were finally conquered by other countries for good in 476 when Odoacer became emperor of both halves of the empire. The last ruler or emperor was named Romulus Augustus who ruled from 475 to 476 alongside Germanic king Odoacer which eventually resulted in dissolving what was left of the once great Empire.