The first censors were elected probably in the year 444 B.C.; about one hundred years afterwards, in 351 B.C., the plebeians secured the right of holding this office also. SIEGE AND CAPTURE OF VEII.--We must now turn to notice the fortunes of Rome in war. Almost from the founding of the city, we find its warlike citizens carrying on a fierce contest with their powerful Etruscan neighbors on the north. Veii was one of the largest and richest of the cities of Etruria. Around this the war gathered. The Romans, like the Grecians at Troy, attacked its walls for ten years. The length of the siege, and the necessity of maintaining a force permanently in the field, led to the establishment of a paid standing army; for hitherto the soldier had not only equipped himself, but had served without pay. Thus was laid the basis of that military power which was destined to effect the conquest of the world, and then, in the hands of ambitious and favorite generals, to overthrow the republic itself. [Illustration: ROMAN SOLDIER.] The capture of Veii by the dictator Camillus (396 B.C.) was followed by that of many other Etruscan towns. Rome was enriched by their spoils, and became the centre of a large and lucrative trade. The frontiers of the republic were pushed out even beyond the utmost limits of the kingdom before its overthrow. All that was lost by the revolution had been now regained, and much besides had been won. At this moment there broke upon the city a storm from the north, which all but cut short the story we are narrating. SACK OF ROME BY THE GAULS (390 B.C.).--We have already mentioned how, in very remote times, the tribes of Gaul crossed the Alps and established themselves in Northern Italy (see p. 223). While the Romans were conquering the towns of Etruria, these barbarian hordes were moving southward, and overrunning and devastating the countries of Central Italy. [Illustration: GAULS IN SIGHT OF ROME.]