Gauls from the alpine regions invaded the northern Etruscan territory around 600 B.C., and the Latin tribes revolted in about 510 B.C., toppling the Etruscan-linked rulers from their power bases and establishing the southern boundary of Etruscan influence at the Tiber. Greeks from Sicily ended Etruscan sea power in 474 B.C. during the battle of Cumae off the Italian coastline just north of Naples. By 250 B.C., the Romans and their allies in Campagna had vanquished the Etruscans, wiping out their language and religion.
Tempered in the fires of military adversity, the stern Roman republic was characterized by belief in the gods, the necessity of learning from the past, strength of the family, education through books and public service, and, most important, obedience. The all-powerful Senate presided as Rome defeated rival powers one after the other in a steady stream of staggering military successes.
As the population grew, the Romans gave to their Latin allies and then to conquered peoples partial or complete Roman citizenship, always with the obligation of military service. Colonies of citizens were established on the borders of the growing empire and were populated with soldiers/farmers and their families. Later, as seen in the history of Britain and the European continent, colonies began to thrive as semiautonomous units on their own, heavily fortified and linked to Rome by well-maintained military roads and a well-defined hierarchy of military command.
The final obstacle to the unrivaled supremacy of Rome was the defeat, during the 3rd century B.C., of the city-state of Carthage during the two Punic Wars. An ancient Phoenician trading post on the coast of Tunisia, Carthage had grown into one of the premier naval and agricultural powers of the Mediterranean, with strongly fortified positions in Corsica, Sardinia, and Spain. Despite the impressive victories of the Carthaginian general Hannibal, Rome eventually eradicated Carthage in one of the most famous defeats in ancient history. Rome was able to immediately expand its power into North Africa, Sardinia, Corsica, and Iberia.
