The western world witnessed the beginning of an equally remarkable change. On both sides of Italy accident was laying the foundation for a steady advance to the North, and forcing the Romans into contact with peoples, whose subjection would never have been sought except from purely defensive motives. The Iapudes and Histri at the head of the Adriatic were the objects of a campaign of the consul Tuditanus,[553] while four years later Fulvius Flaccus commenced operations amongst the Gauls and Ligurians beyond the Alps,[554] which were to find their completion seventy-five years later in the conquests of Caesar. But neither of these enterprises can be intelligently considered in isolation; their significance lies in the necessity of their renewal, and even the proximate results to which they led would carry us far beyond the limits of the period which we are considering. The events completely enclosed within these limits are of subordinate importance. They are a war in Sardinia and the conquest of the Balearic isles. The former engaged the attention of Lucius Aurelius Orestes as consul in 126 and as proconsul in the following year.[555] It is perhaps only the facts that a consul was deemed necessary for the administration of the island, and that he attained a triumph for his deeds,[556] that justify us in calling this Sardinian enterprise a war. It was a punitive expedition undertaken against some restless tribes, but it was rendered arduous by the unhealthiness of the climate and the difficulty of procuring adequate supplies for the suffering Roman troops.[557] The annexation of the Balearic islands with their thirty thousand inhabitants[558] may have been regarded as a geographical necessity, and certainly resulted in a military advantage. Although the Carthaginians had had frequent intercourse with these islands and a Port of the smaller of the two still bears a Punic name,[559] they had done little to civilise the native inhabitants. Perhaps the value attached to the military gifts of the islanders contributed to preserve them in a state of nature; for culture might have diminished that marvellous skill with the sling,[560] which was once at the service of the Carthaginian, and afterwards of the Roman, armies. But, in spite of their prowess, the Baliares were not a fierce people. They would allow no gold or silver to enter their country,[561] probably in order that no temptation might be offered to pirates or rapacious traders.[562] Their civilisation represented the matriarchal stage; their marriage customs expressed the survival of polyandric union; they were tenacious of the lives of their women, and even invested the money which they gained on military service in the purchase of female captives.[563] They made excellent mercenaries, but shunned either war or commerce with the neighbouring peoples, and the only excuse for Roman aggression was that a small proportion of the peaceful inhabitants had lent themselves to piratical