THIRD SAMNITE WAR.--Peace was not of long continuance. The Samnites once more armed themselves for a desperate conflict, having on their side the _Etruscans_, the _Umbrians_, and the _Gauls_ (300). The Italian peoples, which had been at war with one another, joined hands in this contest against the common enemy. A decisive battle was fought at _Sentinum_,--where _Decius Mus_ the younger, following his father's example, devoted himself to death,--resulting in the defeat of the Samnites, and of their allies (295). Soon after, the Samnite general, _Pontius_, fell into the hands of the Romans. The Samnites kept up the contest for several years. But in 290 they found that they could hold out no longer. The Romans secured themselves by fortresses and by colonies, the most important of which was that of _Venusia_, at the boundary of Samnium, Apulia, and Lucania, where they placed twenty thousand colonists. CHAPTER II. WAR WITH PYRRHUS AND UNION OF ITALY (282-264 B.C.). TARENTUM AND PYRRHUS.--The Samnites were overcome. The Greeks and Romans were now to come into closer intercourse with one another,--an intercourse destined to be so momentous in its effect on each of the two kindred races, and, through their joint influence, on the whole subsequent course of European history. _Alexander the Great_ had died too soon to permit him to engage in any plan of conquest in the West. In the wars of his successors the Romans had stood aloof. Now they were brought into conflict with a Greek monarch, _Pyrrhus_, king of Epirus, who was a relative of Alexander, and had married into the royal family of Egypt. He was a man of fascinating person and address, a brilliant and famous soldier, but adventurous, and lacking the coolness and prudence requisite to carry out his project of building up an Hellenic Empire in the western Mediterranean. In the war against the Samnite coalition, the _Lucanians_ had rendered decisive support to the Romans. This was one reason why _Tarentum_, the rich and prosperous Dorian city on the Tarentine Gulf, had been a spectator of the contest in which it had abundant occasion to feel a deep interest. Rome had given up to the Lucanians the non-Dorian Greek cities in that region. But when they sought to subdue _Thurii_, and the Thurines besought the help of Rome, offering to submit themselves to her, the Romans warned the Lucanians to desist. This led to another combination against Rome, in which they took part. A Roman army was destroyed by the _Senonian Gauls_. In consequence of this, the Romans slaughtered, or drove out of Umbria, this people, and, gaining other decisive victories, put their garrisons into _Locri_, _Crotona_, and _Thurii_. The Romans were already masters of Central Italy. Only the Greek cities on the south remained for them to conquer. It was high time for _Tarentum_ to bestir itself. It was from the side of Tarentum that the immediate provocation came. The Tarentines were listening to