Ancient Rome
Ancient Rome, a settlement on the River Tiber in central Italy, founded in 753 BC, was ruled for 244 years by a monarchical system. In 509 BC, the Romans, favouring a government of the Senate and the People (SPQR), expelled the monarchy and established an oligarchic republic.
The Italian Peninsula, named Italia, was consolidated into a unified entity during Roman expansion, the conquest of new territories often at the expense of the other Italic tribes, Etruscans, Celts, and Greeks. A permanent association, with most of the local tribes and cities, was formed, and Rome began the conquest of Western Europe, North Africa, and the Middle East. In the wake of Julius Caesar's assassination in 44 BC, Rome grew into a massive empire stretching from Britain to the borders of Persia, engulfing the whole Mediterranean basin, in which Greek, Roman, and other cultures merged into a powerful civilisation. The long reign of the first emperor, Augustus, began an age of peace and prosperity. Roman Italy remained the metropole of the empire, homeland of the Romans and territory of the capital.[48]
As Roman provinces were being established throughout the Mediterranean, Italy maintained administrative privileges.[citation needed]
The Roman Empire was among the largest in history, wielding great economical, cultural, political, and military power. At its greatest extent, it had an area of 5 million square kilometres (1.9 million square miles).[49] The Roman legacy has deeply influenced Western civilisation shaping the modern world. The widespread use of Romance languages derived from Latin, numerical system, modern Western alphabet and calendar, and the emergence of Christianity as a world religion, are among the many legacies of Roman dominance.[50]