Tullus was succeeded by Ancus.  Tullus appears as one of the Ramnes, and as descended from Hostus Hostilius, one of the companions of Romulus; but Ancus was a Sabine, a grandson of Numa.  The accounts about him are to some extent historical, and there is no trace of poetry in them.  In his reign, the development of the state again made a step in advance.  According to the ancient tradition, Rome was at war with the Latin towns, and carried it on successfully.  How many of the particular events which are recorded may be historical I am unable to say; but that there was a war is credible enough.  Ancus, it is said, carried away after this war many thousands of Latins, and gave them settlements on the Aventine.  The ancients express various opinions about him; sometimes he is described as a captator aurae popularis; sometimes he is called bonus Ancus.  Like the first three kings, he is said to have been a legislator, a fact which is not mentioned in reference to the later kings.  He is moreover stated to have established the colony of Ostia, and thus his kingdom must have extended as far as the mouth of the Tiber.

Ancus and Tullus seem to me to be historical personages; but we can scarcely suppose that the latter was succeeded by the former, and that the events assigned to their reigns actually occurred in them.  These events must be conceived in the following manner:  Toward the end of the fourth reign, when, after a feud which lasted many years, the Romans came to an understanding with the Latins about the renewal of the long-neglected alliance, Rome gave up its claims to the supremacy which it could not maintain, and indemnified itself by extending its dominion in another and safer direction.  The eastern colonies joined the Latin towns which still existed:  this is evident, though it is nowhere expressly mentioned; and a portion of the Latin country was ceded to Rome, with which the rest of the Latins formed a connection of friendship, perhaps of isopolity.  Rome here acted as wisely as England did when she recognized the independence of North America.

In this manner Rome obtained a territory.  The many thousand settlers whom Ancus is said to have led to the Aventine were the population of the Latin towns which became subject to Rome, and they were far more numerous than the two ancient tribes, even after the latter had been increased by their union with the third tribe.  In these country districts lay the power of Rome, and from them she raised the armies with which she carried on her wars.  It would have been natural to admit this population as a fourth tribe, but such a measure was not agreeable to the Romans:  the constitution of the state was completed and was looked upon as a sacred trust in which no change ought to be introduced.  It was with the Greeks and Romans as it was with our own ancestors, whose separate tribes clung to their hereditary laws, and differed from one another in this respect as much