On the other hand the Roman element was promoted by the government through colonization and Latinizing with all vigour and at the most various points of the empire. The principle, which originated no doubt from a bad combination of formal law and brute force, but was inevitably necessary in order to freedom in dealing with the nations destined to destruction - that all the soil in the provinces not ceded by special act of the government to communities or private persons was the property of the state, and the holder of it for the time being had merely an heritable possession on sufferance and revocable at any time - was retained also by Caesar and raised by him from a democratic party-theory to a fundamental principle of monarchical law.

Gaul, of course, fell to be primarily dealt with in the extension of Roman nationality. Cisalpine Gaul obtained throughout - what a great part of the inhabitants had long enjoyed - political equalization with the leading country by the admission of the Transpadane communities into the Roman burgess-union, which had for long been assumed by the democracy as accomplished[90], and was now (705) finally accomplished by Caesar. Practically this province had already completely Latinized itself during the forty years which had elapsed since the bestowal of Latin rights. The exclusives might ridicule the broad and gurgling accent of the Celtic Latin, and miss "an undefined something of the grace of the capita", in the Insubrian or Venetian, who as Caesar's legionary had conquered for himself with his sword a place in the Roman Forum and even in the Roman senate-house. Nevertheless Cisalpine Gaul with its dense chiefly agricultural population was even before Caesar's time in reality an Italian country, and remained for centuries the true asylum of Italian manners and Italian culture; indeed the teachers of Latin literature found nowhere else out of the capital so much encouragement and approbation.

While Cisalpine Gaul was thus substantially merged in Italy, the place which it had hitherto occupied was taken by the Transalpine province, which had been converted by the conquests of Caesar from a frontier into an inland province, and which by its vicinity as well as by its climate was fitted beyond all other regions to become in due course of time likewise an Italian land. Thither principally, according to the old aim of the transmarine settlements of the Roman democracy, was the stream of Italian emigration directed. There the ancient colony of Narbo was reinforced by new settlers, and four new burgess-colonies were instituted at Baeterrae (Beziers) not far from Narbo, at Arelate (Aries) and Arausio (Orange) on the Rhone, and at the new seaport Forum Julii (Frejus); while the names assigned to them at the same time preserved the memory of the brave legions which had annexed northern Gaul to the empire[91]. The townships not furnished with colonists appear, at least for the most part, to have been led on toward Romanization in the same way as Transpadane Gaul in former times[92] by the bestowal of Latin urban rights; in particular Nemausus (Nimes), as the chief place of the territory taken from the Massiliots in consequence of their revolt against Caesar[93], was converted from a Massiliot village into a Latin urban community, and endowed with a considerable territory and even with the right of coinage[94]. While Cisalpine Gaul thus advanced from the preparatory stage to full equality with Italy, the Narbonese province advanced at the same time into that preparatory stage; just as previously in Cisalpine Gaul, the most considerable communities there had the full franchise, the rest Latin rights.

In the other non-Greek and non-Latin regions of the empire, which were still more remote from the influence of Italy and the process of assimilation, Caesar confined himself to the establishment of several centres for Italian civilization such as Narbo had hitherto been in Gaul, in order by their means to pave the way for a future complete equalization. Such initial steps can be pointed out in all the provinces of the empire, with the exception of the poorest and least important of all, Sardinia. How Caesar proceeded in Northern Gaul, we have already set forth[95]; the Latin language there obtained throughout official recognition, though not yet employed for all branches of public intercourse, and the colony of Noviodunum (Nyon) arose on the Leman lake as the most northerly town with an Italian constitution.

In Spain, which was presumably at that time the most densely peopled country of the Roman empire, not merely were Caesarian colonists settled in the important Helleno-Iberian seaport town of Emporiae by the side of the old population; but, as recently-discovered records have shown, a number of colonists probably taken predominantly from the proletariate of the capital were provided for in the town of Urso (Osuna), not far from Seville in the heart of Andalusia, and perhaps also in several other townships of this province. The ancient and wealthy mercantile city of Gades, whose municipal system Caesar even when praetor had remodelled suitably to the times, now obtained from the Imperator the full rights of the Italian municipia (705) and became - what Tusculum had been in Italy[96] - the first extra-Italian community not founded by Rome which was admitted into the Roman burgess-union. Some years afterwards (709) similar rights were conferred also on some other Spanish communities, and Latin rights presumably on still more.

In Africa the project, which Gaius Gracchus had not been allowed to bring to an issue, was now carried out, and on the spot where the city of the hereditary foes of Rome had stood, 3000 Italian colonists and a great number of the tenants on lease and sufferance resident in the Carthaginian territory were settled; and the new "Venus-colony", the Roman Carthage, throve with amazing rapidity under the incomparably favourable circumstances of the locality. Utica, hitherto the capital and first commercial town in the province, had already been in some measure compensated beforehand, apparently by the bestowal of Latin rights, for the revival of its superior rival. In the Numidian territory newly annexed to the empire the important Cirta and the other communities assigned to the Roman condottiere Publius Sittius for himself and his troops[97] obtained the legal position of Roman military colonies. The stately provincial towns indeed, which the insane fury of Juba and of the desperate remnant of the constitutional party had converted into ruins, did not revive so rapidly as they had been reduced to ashes, and many a ruinous site recalled long afterwards this fatal period; but the two new Julian colonies, Carthage and Cirta, became and continued to be the centres of Africano-Roman civilization.