South of the great curve of the western Alps the varying dialects have ultimately fused into the beautiful Italian language, the most direct descendant of Latin. Since Roman times there {35} have been notable intrusions from without, such as that of the Longobards or Lombards into the Po basin in the sixth century, and those of Islam and of the Normans into the south, but the Latin element has assimilated all these, though in the Alps themselves the tendency is towards French on the west and German on the north, with the curious survival of Romansch and Ladin, already noted in the north-east. A small area of Italian speech near the coast (Mentone) has been included in France. In Calabria there are a few small Greek patches, and there are Albanian ones in various parts, while Slavonic (Slovene) is spoken in various parts of eastern Venetia and Istria. The home tradition of Rome was that of the city-state, and it resurged during the period of mediaeval trade and operated against the growth of national consciousness. The influence of the other city-states, notably Venice, operated in the same way in the Middle Ages. This was further held back by the struggles of Germanic peoples to gain Rome and revive the Imperial tradition, and still more by the influence of the Church, particularly since the advent of the Counter-Reformation and the Jesuit power. But the railway made the old localism impossible, and the widespread nationalist movement of the nineteenth century had its effect in Italy as well as elsewhere. The struggle for the unification of Italy and the redemption of Italian lands from foreign dominion by Mazzini, Cavour, and Garibaldi is one of the romances of humanity, and from it has arisen the modern Italian kingdom (1870 onwards) with its promise of magnificent development. The difficulties in the way include three large ones. Industrial power was lacking until hydro-electric schemes became practicable; they are remedying the position to some extent in the north, and the cleanliness of these schemes encourages high-grade industries. The deep social and even racial contrasts between the Po basin and the south of the peninsula are another difficulty. {36} A third is that of the large and often neglected estates (_latifundia_) of the south. There neglected drainage has allowed accumulation of stagnant water, and the swamps are infested with malaria, which not only kills many children, but also weakens those who survive its pernicious attentions.