The Roman Republic was a form of government that existed in the city of Rome until it was replaced by the Roman Empire in 27 BC. It was established around 509 BC, after the overthrow of the last king of Rome, Lucius Tarquinius Superbus. During its time, it played a key role in the development of democracy and is credited with laying the foundations for modern-day politics. Its influence extended beyond Italy and is still seen today in many aspects of Western government and society. Important figures from its history include Julius Caesar, who played an important role.