100. Having passed the Pyrenees, Hannibal advanced through friendly tribes of Gauls to the Rhone, which he crossed near the modern town of Orange, gaining an advance of three days upon the army of Scipio, the consul, who had intended to stop him. The passage of the Alps, with such a force, was one of the greatest military achievements of ancient times. The higher mountains were already obstructed by the snows of early autumn; hostile tribes contested his passage in narrow and dangerous defiles; and in two fierce battles, the army of Hannibal narrowly escaped total destruction. When, after fifteen days of toilsome and dangerous marching, he emerged into the plain of the Po, it was with scarcely more than one-fourth of the great army which had accompanied him from Carthagena.
101. The Insubrian Gauls welcomed Hannibal as their deliverer from the hated power of Rome. After a short period of rest in their hospitable country, he sought Scipio, and totally routed his forces in a battle on the Tici´nus. By a still greater victory on the Tre´bia, over the forces of the two consuls (Dec., 218 B. C.), Hannibal became master of northern Italy. All the Gauls who had wavered now hastened to join his standard; but the gain from this quarter was balanced by the irreparable loss of his elephants, and the severe suffering of his African and Spanish troops from the unwonted coldness of the winter.
In the spring of 217 B. C., he crossed the Apennines, and traversed the marshes of the Arno, a passage of tremendous difficulty, in which many of his beasts of burden perished. Again seeking battle, Hannibal passed the army of Flaminius at Arretium, and laid waste the country toward Peru´sia, thus provoking the consul to follow. When he had drawn the Roman army into a most perilous position, between precipitous cliffs and the Lake Thrasymene, he let loose his Gauls and Numidians to the attack. The defeat of the Romans was overwhelming: thousands were forced into the lake; thousands fell by the sword, among whom was Flaminius himself; and 15,000 prisoners remained in the hands of the enemy.
102. A panic seized Rome; the conqueror was instantly expected at her gates, and Fabius was elected dictator with unlimited powers. But Hannibal had sought to detach the Italian allies from Rome, by releasing without ransom all their prisoners whom he had taken. Wishing to give time for the disunion to take effect, he turned aside into Apulia, where he rested and recruited his troops worn by so many hardships.
It was already proved in three battles that the Carthaginian was irresistible in the field. The policy of Fabius, therefore, was to avoid a general engagement, while he annoyed and weakened his enemy by cutting off his foraging parties, and otherwise harassing his march. In vain Hannibal crossed the Apennines into the rich Campanian fields, plundering and destroying the crops; he could neither capture a town nor entice Fabius into a battle. The latter fortified the Samnian mountain-passes, thinking to catch his enemy in a trap; but Hannibal eluded the snare and retired safe into Apulia, laden with abundant provision for the comfort of his winter-quarters.
103. Great discontent was felt at Rome with the cautious policy of the dictator, and, in the spring of 216 B. C., an army of nearly 90,000 men was led into Apulia by the two consuls Æmilius Paulus and Terentius Varro. They were met by Hannibal on the plain of the Aufidus, near the little town of Cannæ. The Carthaginians were inferior in numbers but superior in discipline, especially in the Numidian horsemen, who had always been victorious in an open field. Never had the Romans suffered so overwhelming a defeat. Their army was annihilated. From 40,000 to 50,000 men lay dead upon the plain, among whom were Æmilius the consul, eighty senators, and the flower of Roman knighthood. Varro, the other consul, with a small but resolute band, made his way in good order from the battle-field; the rest of the survivors were either dispersed or taken prisoners.
104. Southern Italy was now lost to Rome. Except the Roman colonies and the Greek cities held by Roman garrisons, all submitted to Hannibal. Capua opened her gates and became the winter-quarters of the African army. Philip of Macedon and Hieron´ymus of Syracuse made alliance with Carthage, and wars with these two powers divided the attention of the Romans. Still, beside keeping two armies in the foreign fields, they occupied every province of Italy with a separate force; and though too wise to meet Hannibal again in a general engagement, hemmed him in closely and cut off his supplies. The great general was now but faintly supported at home, and the ungenerous policy of Carthage probably deprived her of the conquest of Italy.
105. Three years, therefore, passed with no decisive events. In 212 B. C., Syracuse was taken by Marcellus after two years’ siege. The attacks of the Romans had been long foiled by the skill of Archimedes, the philosopher, who is said to have burnt their ships at the distance of a bow-shot from the walls, by means of a combination of mirrors which concentrated the sun’s rays. He constructed powerful engines, which, when attached to the walls, grappled the Roman ships and lifted them out of the water; and, in short, the brain of Archimedes was a better defense to Syracuse than the arms of all her soldiers. In the taking of the city, the philosopher was slain by some ignorant troopers; but Marcellus deeply regretted the event. He ordered him to be buried with high honors, and distinguished his family by many marks of friendship.
106. Hannibal had been long anxiously awaiting the arrival of his brother from Spain; but the generalship of the two Scipios, Cneius and Publius, who conducted the war in that country, and more especially the brilliant genius of the son of the latter, afterward known as Africanus, had detained Hasdrubal and involved him in many disasters, even the loss of his capital, Carthagena. At last, in 208 B. C., Hasdrubal left Spain to the care of two other generals, and striking out a new path, as his brother’s route of eleven years before was now guarded by the Romans, he crossed the Pyrenees at their western extremity and plunged into the heart of Gaul. Many of the restless people flocked to his standard, and he “descended from the Alps like a rolling snow-ball, far greater than he came over the Pyrenees.”
He found some of Hannibal’s roads uninjured; the mountaineers made no effort to dispute his passage, and he arrived in Italy before he was expected, so that no Roman army was ready to receive him. He might, perhaps, have settled once for all the supremacy of Carthage by marching directly on Rome, for the resources of the Republic, both in men and money, had been drained to the utmost, and another Thrasymene or Cannæ would have ended her existence.