=80.= The Boian Gauls took up arms to avenge their brethren, and, joining the Etruscans, met the Roman forces in the valley of the Tiber, near the little lake Vad´imon. They were defeated so thoroughly that very few escaped from the field. The consul Fabric´ius, the following year, defeated the Samnites, Lucanians, and Bruttians in several great battles, broke up the coalition in the south, and collected an amount of spoils which enabled him to pay all the war expenses of the year, and, beside allowing a liberal share to every soldier, to leave half a million of dollars in the treasury. Tarentum, the prime mover of the war, had never drawn a sword, but had left all its burdens and losses to her allies. To punish this passive but mischievous policy, a Roman fleet was now sent to cruise around the eastern and southern coasts of Italy. It was defeated and sunk by the Tarentines in their own harbor. They then seized Thurii, expelled the Roman garrison, and, in the name of all the Italian Greeks, sent to Pyrrhus, king of Epirus, for aid. =81.= This accomplished and ambitious prince was glad of a new field of enterprise. He hastened into Italy with a well-appointed army of 25,500 men, drilled and equipped in the Macedonian fashion, and supplied with twenty elephants. The gay and self-indulgent Tarentines, quite willing that another should fight their battles for them, forgot their promises of service and subsidies; but Pyrrhus showed them that he was master by stopping the sports of the circus and theaters, and the banquets of the clubs, and keeping the citizens under arms from morning to night. Even with inferior forces he was able to defeat the Roman legions at Heracle´a, on the Siris. Seven times the Epirotes and Greeks were driven from the field, and seven times regained it; but when the last Italian reserve was engaged, Pyrrhus brought on his elephants, till then unknown in Italy, and they put to flight the Roman horse. The rout was complete; the Romans did not stay to defend their camp, but fled to Venu´sia, leaving Pyrrhus master of the field.