Answer:
The Roman Empire was the largest empire of the ancient world. Its capital was Rome, and its empire was based in the Mediterranean. The Empire dates from 27 BC, when Octavian became the Emperor Augustus, until it fell in 476 AD, marking the end of the Ancient World and the beginning of the Middle Ages, or Dark Ages.
In order to control their large empire, the Romans developed important ideas about law and government. They developed the best army in the world at that time, and ruled by force. They had fine engineering, and built roads, cities, and outstanding buildings.