The Republic was wealthy, powerful and stable before it became an empire. According to tradition, Rome became a republic in 509 BC. However, it took a few centuries for Rome to become the great city of popular imagination, and it only became a great empire after the rule of Augustus (Octavian). By the 3rd century BC, Rome had become the pre-eminent city of the Italian peninsula, having conquered and defeated the Sabines, the Etruscans, the Samnites and most of the Greek colonies in Sicily, Campania and Southern Italy in general. During the Punic Wars between Rome and the great Mediterranean empire of Carthage, Rome's stature increased further as it became the capital of an overseas empire for the first time. Beginning in the 2nd century BC, Rome went through a significant population expansion as Italian farmers, driven from their ancestral farmlands by the advent of massive, slave-operated farms called latifundia, flocked to the city in great numbers.
