Since classical times, ancient Phoenicians and Greeks, Etruscans, and Celts have inhabited the south, centre and north of the Italian Peninsula respectively, with various Italic peoples dispersed throughout Italy alongside other ancient Italian tribes and Greek, Carthaginian, and Phoenician colonies. The Italic tribe known as the Latins formed the Roman Kingdom, which eventually spread throughout Italy, assimilating and conquering other nearby civilisations and forming the Roman Republic. Rome ultimately emerged as the dominant power, conquering much of the ancient world and becoming the leading cultural, political, and religious center of Western civilisation.