With the introduction of bronze the custom of incineration of the dead also appears and replaces the typical Neolithic custom of inhumation. The introduction of bronze into England and into Scandinavia may be safely dated about one thousand years later, after 1800 B. C. The fact that the Alpines only barely reached Ireland indicates that at this time that island was severed from England and that the land connection between England and France had been broken. The computation of the foregoing dates, of course, is somewhat hypothetical, but the fixed fact remains that this last expansion of the Alpines brought the knowledge of bronze to western and northern Europe and to the Mediterranean and Nordic peoples living there. The effect of the introduction of bronze in the areas occupied chiefly by the Mediterranean race along the Atlantic coast and in Britain, as well as in north Africa from Tunis to Morocco, is seen in the construction and in the wide distribution of the megalithic funeral monuments, which appear to have been erected, not by Alpines but by the dolichocephs. The occurrence of bronze tools and weapons in the interments shows clearly that the megaliths of the south of France date from the beginning of the Bronze Age. The absence of bronze from the dolmens of Brittany may indicate an earlier age. It is, however, more likely that the opening Bronze Age in the South was contemporary with the late Neolithic in the North. The construction and use of these monuments continued at least until the very earliest trace of iron appears and in fact mound burials among the Vikings were common until the introduction of Christianity. Although there is evidence of very early use of iron in Egypt the knowledge of this metal as well as of bronze in Europe centres around the area occupied by the Alpines in the eastern Alps and its earliest phase is known as the Hallstatt culture, from a little town in the Tyrol where it was first discovered. This Hallstatt iron culture appeared about 1500 B. C. The Alpine Hittites in northeast Asia Minor were probably the first to mine and smelt iron and they introduced it to the Alpines of eastern Europe, but it was the Nordics who benefited by its use. Bronze weapons and the later iron ones proved in the hands of these Northern barbarians to be of terrible effectiveness. With these metal swords in their grasp, the Nordics conquered the Alpines of central Europe and then suddenly entered the ancient world as raiders and destroyers of cities. The classic civilizations of the northern coasts of the Mediterranean Sea fell, one after another, before the “Furor Normanorum,” just as two thousand years later the provinces of Rome were devastated by the last great flood of the Nordics from beyond the Alps.