The mainland of Italy proper, south of the Apennines, enjoyed profound peace after the fall of Tarentum: the six days' war with Falerii (513) was little more than an interlude. But towards the north, between the territory of the confederacy and the natural boundary of Italy—the chain of the Alps—there still extended a wide region which was not subject to the Romans. What was regarded as the boundary of Italy on the Adriatic coast was the river Aesis immediately above Ancona. Beyond this boundary the adjacent properly Gallic territory as far as, and including, Ravenna belonged in a similar way as did Italy proper to the Roman alliance; the Senones, who had formerly settled there, were extirpated in the war of 471-2,(12) and the several townships were connected with Rome, either as burgess-colonies, like Sena Gallica,(13) or as allied towns, whether with Latin rights, like Ariminum,(14) or with Italian rights, like Ravenna. On the wide region beyond Ravenna as far as the Alps non-Italian peoples were settled. South of the Po the strong Celtic tribe of the Boii still held its ground (from Parma to Bologna); alongside of them, the Lingones on the east and the Anares on the west (in the region of Parma)—two smaller Celtic cantons presumably clients of the Boii— peopled the plain. At the western end of the plain the Ligurians began, who, mingled with isolated Celtic tribes, and settled on the Apennines from above Arezzo and Pisa westward, occupied the region of the sources of the Po. The eastern portion of the plain north of the Po, nearly from Verona to the coast, was possessed by the Veneti, a race different from the Celts and probably of Illyrian extraction. Between these and the western mountains were settled the Cenomani (about Brescia and Cremona) who rarely acted with the Celtic nation and were probably largely intermingled with Veneti, and the Insubres (around Milan). The latter was the most considerable of the Celtic cantons in Italy, and was in constant communication not merely with the minor communities partly of Celtic, partly of non-Celtic extraction, that were scattered in the Alpine valleys, but also with the Celtic cantons beyond the Alps. The gates of the Alps, the mighty stream navigable for 230 miles, and the largest and most fertile plain of the then civilized Europe, still continued in the hands of the hereditary foes of the Italian name, who, humbled indeed and weakened, but still scarce even nominally dependent and still troublesome neighbours, persevered in their barbarism, and, thinly scattered over the spacious plains, continued to pasture their herds and to plunder. It was to be anticipated that the Romans would hasten to possess themselves of these regions; the more so as the Celts gradually began to forget their defeats in the campaigns of 471 and 472 and to bestir themselves again, and, what was still more dangerous, the Transalpine Celts began anew to show themselves on the south of the Alps.
Celtic Wars
In fact the Boii had already renewed the war in 516, and their chiefs Atis and Galatas had—without, it is true, the authority of the general diet—summoned the Transalpine Gauls to make common cause with them. The latter had numerously answered the call, and in 518 a Celtic army, such as Italy had not seen for long, encamped before Ariminum. The Romans, for the moment much too weak to attempt a battle, concluded an armistice, and to gain time allowed envoys from the Celts to proceed to Rome, who ventured in the senate to demand the cession of Ariminum—it seemed as if the times of Brennus had returned. But an unexpected incident put an end to the war before it had well begun. The Boii, dissatisfied with their unbidden allies and afraid probably for their own territory, fell into variance with the Transalpine Gauls. An open battle took place between the two Celtic hosts; and, after the chiefs of the Boii had been put to death by their own men, the Transalpine Gauls returned home. The Boii were thus delivered into the hands of the Romans, and the latter were at liberty to expel them like the Senones, and to advance at least to the Po; but they preferred to grant the Boii peace in return for the cession of some districts of their land (518). This was probably done, because they were just at that time expecting the renewed outbreak of war with Carthage; but, after that war had been averted by the cession of Sardinia, true policy required the Roman government to take possession as speedily and entirely as possible of the country up to the Alps. The constant apprehensions on the part of the Celts as to such a Roman invasion were therefore sufficiently justified; but the Romans were in no haste. So the Celts on their part began the war, either because the Roman assignations of land on the east coast (522), although not a measure immediately directed against them, made them apprehensive of danger; or because they perceived that a war with Rome for the possession of Lombardy was inevitable; or, as is perhaps most probable, because their Celtic impatience was once more weary of inaction and preferred to arm for a new warlike expedition. With the exception of the Cenomani, who acted with the Veneti and declared for the Romans, all the Italian Celts concurred in the war, and they were joined by the Celts of the upper valley of the Rhone, or rather by a number of adventurers belonging to them, under the leaders Concolitanus and Aneroestus.(15) With 50,000 warriors on foot, and 20,000 on horseback or in chariots, the leaders of the Celts advanced to the Apennines (529). The Romans had not anticipated an attack on this side, and had not expected that the Celts, disregarding the Roman fortresses on the east coast and the protection of their own kinsmen, would venture to advance directly against the capital. Not very long before a similar Celtic swarm had in an exactly similar way overrun Greece. The danger was serious, and appeared still more serious than it really was. The belief that Rome's destruction was this time inevitable, and that the Roman soil was fated to become the property of the Gauls, was so generally diffused among the multitude in Rome itself that the government reckoned it not beneath its dignity to allay the absurd superstitious belief of the mob by an act still more absurd, and to bury alive a Gaulish man and a Gaulish woman in the Roman Forum with a view to fulfil the oracle of destiny. At the same time they made more serious preparations. Of the two consular armies, each of which numbered about 25,000 infantry and 1100 cavalry, one was stationed in Sardinia under Gaius Atilius Regulus, the other at Ariminum under Lucius Aemilius Papus. Both received orders to repair as speedily as possible to Etruria, which was most immediately threatened. The Celts had already been under the necessity of leaving a garrison at home to face the Cenomani and Veneti, who were allied with Rome; now the levy of the Umbrians was directed to advance from their native mountains down into the plain of the Boii, and to inflict all the injury which they could think of on the enemy upon his own soil. The militia of the Etruscans and Sabines was to occupy the Apennines and if possible to obstruct the passage, till the regular troops could arrive. A reserve was formed in Rome of 50,000 men. Throughout all Italy, which on this occasion recognized its true champion in Rome, the men capable of service were enrolled, and stores and materials of war were collected.
Battle of Telamon
All this, however, required time. For once the Romans had allowed themselves to be surprised, and it was too late at least to save Etruria. The Celts found the Apennines hardly defended, and plundered unopposed the rich plains of the Tuscan territory, which for long had seen no enemy. They were already at Clusium, three days' march from Rome, when the army of Ariminum, under the consul Papus, appeared on their flank, while the Etruscan militia, which after crossing the Apennines had assembled in rear of the Gauls, followed the line of the enemy's march. Suddenly one evening, after the two armies had already encamped and the bivouac fires were kindled, the Celtic infantry again broke up and retreated on the road towards Faesulae (Fiesole): the cavalry occupied the advanced posts during the night, and followed the main force next morning. When the Tuscan militia, who had pitched their camp close upon the enemy, became aware of his departure, they imagined that the host had begun to disperse, and marched hastily in pursuit. The Gauls had reckoned on this very result: their infantry, which had rested and was drawn up in order, awaited on a well-chosen battlefield the Roman militia, which came up from its forced march fatigued and disordered. Six thousand men fell after a furious combat, and the rest of the militia, which had been compelled to seek refuge on a hill, would have perished, had not the consular army appeared just in time. This induced the Gauls to return homeward. Their dexterously-contrived plan for preventing the union of the two Roman armies and annihilating the weaker in detail, had only been partially successful; now it seemed to them advisable first of all to place in security their considerable booty. For the sake of an easier line of march they proceeded from the district of Chiusi, where they were, to the level coast, and were marching along the shore, when they found an unexpected obstacle in the way. It was the Sardinian legions, which had landed at Pisae; and, when they arrived too late to obstruct the passage of the Apennines, had immediately put themselves in motion and were advancing along the coast in a direction opposite to the march of the Gauls. Near Telamon (at the mouth of the Ombrone) they met with the enemy. While the Roman infantry advanced with close front along the great road, the cavalry, led by the consul Gaius Atilius Regulus in person, made a side movement so as to take the Gauls in flank, and to acquaint the other Roman army under Papus as soon as possible with their arrival. A hot cavalry engagement took place, in which along with many brave Romans Regulus fell; but he had not sacrificed his life in vain: his object was gained. Papus became aware of the conflict, and guessed how matters stood; he hastily arrayed his legions, and on both sides the Celtic host was now pressed by Roman legions. Courageously it made its dispositions for the double conflict, the Transalpine Gauls and Insubres against the troops of Papus, the Alpine Taurisci and the Boii against the Sardinian infantry; the cavalry combat pursued its course apart on the flank. The forces were in numbers not unequally matched, and the desperate position of the Gauls impelled them to the most obstinate resistance. But the Transalpine Gauls, accustomed only to close fighting, gave way before the missiles of the Roman skirmishers; in the hand-to-hand combat the better temper of the Roman weapons placed the Gauls at a disadvantage; and at last an attack in flank by the victorious Roman cavalry decided the day. The Celtic horsemen made their escape; the infantry, wedged in between the sea and the three Roman armies, had no means of flight. 10,000 Celts, with their king Concolitanus, were taken prisoners; 40,000 others lay dead on the field of battle; Aneroestus and his attendants had, after the Celtic fashion, put themselves to death.
The Celts Attacked in Their Own Land
The victory was complete, and the Romans were firmly resolved to prevent the recurrence of such surprises by the complete subjugation of the Celts on the south of the Alps. In the following year (530) the Boii submitted without resistance along with the Lingones; and in the year after that (531) the Anares; so that the plain as far as the Po was in the hands of the Romans. The conquest of the northern bank of the river cost a more serious struggle. Gaius Flaminius crossed the river in the newly-acquired territory of the Anares (somewhere near Piacenza) in 531; but during the crossing, and still more while making good his footing on the other bank, he suffered so heavy losses and found himself with the river in his rear in so dangerous a position, that he made a capitulation with the enemy to secure a free retreat, which the Insubres foolishly conceded. Scarce, however, had he escaped when he appeared in the territory of the Cenomani, and, united with them, advanced for the second time from the north into the canton of the Insubres. The Gauls perceived what was now the object of the Romans, when it was too late: they took from the temple of their goddess the golden standards called the "immovable," and with their whole levy, 50,000 strong, they offered battle to the Romans. The situation of the latter was critical: they were stationed with their back to a river (perhaps the Oglio), separated from home by the enemy's territory, and left to depend for aid in battle as well as for their line of retreat on the uncertain friendship of the Cenomani. There was, however, no choice. The Gauls fighting in the Roman ranks were placed on the left bank of the stream; on the right, opposite to the Insubres, the legions were drawn up, and the bridges were broken down that they might not be assailed, at least in the rear, by their dubious allies.
The Celts Conquered by Rome
In this way undoubtedly the river cut off their retreat, and their way homeward lay through the hostile army. But the superiority of the Roman arms and of Roman discipline achieved the victory, and the army cut its way through: once more the Roman tactics had redeemed the blunders of the general. The victory was due to the soldiers and officers, not to the generals, who gained a triumph only through popular favour in opposition to the just decree of the senate. Gladly would the Insubres have made peace; but Rome required unconditional subjection, and things had not yet come to that pass. They tried to maintain their ground with the help of their northern kinsmen; and, with 30,000 mercenaries whom they had raised amongst these and their own levy, they received the two consular armies advancing once more in the following year (532) from the territory of the Cenomani to invade their land. Various obstinate combats took place; in a diversion, attempted by the Insubres against the Roman fortress of Clastidium (Casteggio, below Pavia), on the right bank of the Po, the Gallic king Virdumarus fell by the hand of the consul Marcus Marcellus. But, after a battle already half won by the Celts but ultimately decided in favour of the Romans, the consul Gnaeus Scipio took by assault Mediolanum, the capital of the Insubres, and the capture of that town and of Comum terminated their resistance. Thus the Celts of Italy were completely vanquished, and as, just before, the Romans had shown to the Hellenes in the war with the pirates the difference between a Roman and a Greek sovereignty of the seas, so they had now brilliantly demonstrated that Rome knew how to defend the gates of Italy against freebooters on land otherwise than Macedonia had guarded the gates of Greece, and that in spite of all internal quarrels Italy presented as united a front to the national foe, as Greece exhibited distraction and discord.
Romanization of the Entire of Italy