The Hellenized Samnites ask the aid of Rome against their highland countrymen. The First Samnite War, B. C. 343-341, opens with success to the Romans. Sedition of troops in Campania. The Latins revolt against Rome and join the Campanians and Volscians. The Romans make peace and alliance with the Samnites for the Latin War, B. C. 340-338. In the battle of Vesuvius, Decius, the consul, devotes himself to death, and the Romans are victorious. The Latin League suppressed, and the supremacy of Rome established. An invasion of Italy by Alexander of Epirus, is followed by the Second Samnite War, B. C. 326-304. The Romans defeated at the Caudine Forks, B. C. 321, but at last completely victorious. They conquer the Æqui, B. C. 304. Third Samnite War, and Italian League against Rome, B. C. 298-290. Great victory at Sentinum over Gauls, Samnites, Etruscans, and Umbrians. Capture of Pontius, B. C. 292, and end of the Samnite wars. Sabine territories conquered and divided among the people, by Hortensian laws. WAR WITH PYRRHUS. =79.= Within three years (B. C. 283), the Romans were menaced by a new danger, in a powerful coalition formed by the Tarentines, and including nearly all the nations of Italy. The storm gathered swiftly and burst from all quarters at once. In the south, the Samnites, Lucanians, and Bruttians were in arms; in the north, the Etruscans and Umbrians, with hordes of Gallic mercenaries, were pouring into the field. Arre´tium alone stood firmly by the Roman alliance, and was besieged by an army of Etruscans and Gauls. The consul, Metel´lus, marching to its relief, was defeated with the total loss of his army. Embassadors, sent to remonstrate with the Seno´nian Gauls for the infringement of their treaty with Rome, were murdered, and their bodies hewed to pieces and cast out without burial. This outrage, which the laws of the rudest savages pronounced sacrilege, provoked a speedy vengeance. Dolabel´la, the consul, marched into the Gallic territory with his army, killed every man who was found, carried off the women and children as slaves, and reduced every village to a heap of ashes and rubbish.