This disaster was the capture and sack of Rome by a wandering tribe of Gauls from the north, who descended the valley of the Tiber, took the Romans by surprise, and utterly routed them at the little river Allia, twelve miles from the city. These Gauls were formidable in battle and fairly frightened the Romans; but, like other Celtic peoples, they were incapable of settling down into a solid State, or of making good use of their victories. They vanished as quickly as they had come, and left nothing behind them but an indelible memory of the terror they had inspired, and many stories of the agony of that catastrophe. The most characteristic of these shows the veneration of the Romans for what was perhaps their greatest political institution, the Senate. The citizens had fled to the Capitol, where they contrived to hold out till relief came; but meanwhile the older Senators, men who were past the age of fighting, determined to meet their death, and devoted themselves, according to an old religious practice resorted to in extreme peril, to the infernal deities. Each then took his seat in state robes at the door of his house. There the Gauls found them and marvelled, taking them for more than human. At last a Gaul ventured to stroke the beard of one of them named Papirius, who immediately struck him with his ivory wand: he was instantly slain, and of the rest not one survived. We need not ask whether this story is true or not, for it is impossible to test it: but it is truly Roman in feeling, and from a religious point of view it falls in line with others that were told of the sacrifice of the individual for the State. This experience was a terrible discipline for the Romans, but no sooner had the Gauls departed than they began to turn it to practical account. They saw that they must secure the country to the north of them more effectually, and they did so by making large portions of it Roman territory, and by establishing two colonies there, _i.e._ garrisoned fortresses on military roads. Then they turned to deal with their own confederates, who perhaps had felt a secret satisfaction in the humiliation of a leader of whom they were jealous, and were now, especially the two great neighbouring cities of Tibur and Præneste (Tivoli and Palestrina), beginning to rise in open revolt. Knowing what happened afterwards, we can say that these Latin cities were standing in the way of Italian progress: but to the ancient city-state independence was the very salt of life.