As the saying goes, Rome was not built in a day. It was a massive civilisation, and such a civilisation could only have been formed over many centuries.
It is estimated that the city of Rome was founded in 753 BC by the twin brothers Romulus and Remus. However, the Roman Republic was founded much later, in 509 BC. For the next five hundred years, its republic remained in function. Where the power was in the hands of Senate, whose members were elected every year. In 49 BC, Julius Caesar attacked and seized the power to become a dictator. He was ultimately assassinated in 44 BC.
The first emperor of Rome was Octavian, who is also known as Augustus. The year 27 BC marked the end of the Republic, and there began the Roman empire under the rule of Octavian.
In the centuries to follow, Rome would expand culturally to a great diversity. Most of its expansion was due to its large and well-trained army, which conquered many other empires. In the year 391, Christianity became the official religion of the Roman empire. But soon, after the attacks Alaric and then Hun, Roman empire diminished and eventually disappeared.