THE Neanderthal type of man prevailed in Europe at least for tens of thousands of years. For ages that make all history seem a thing of yesterday, these nearly human creatures prevailed. If the Heidelberg jaw was that of a Neanderthaler, and if there is no error in the estimate of the age of that jaw, then the Neanderthal Race lasted out for more than 200,000 years! Finally, between 40,000 and 25,000 years ago, as the Fourth Glacial Age softened towards more temperate conditions (see Map on p. 89), a different human type came upon the scene, and, it would seem, exterminated Homo Neanderthalensis.[36] This new type was probably developed in South Asia or North Africa, or in lands now submerged in the Mediterranean basin, and, as more remains are collected and evidence accumulates, men will learn more of their early stages. At present we can only guess where and how, through the slow ages, parallel with the Neanderthal cousin, these first true men arose out of some more ape-like progenitor. For hundreds of centuries they were acquiring skill of hand and limb, and power and bulk of brain, in that still unknown environment. They were already far above the Neanderthal level of achievement and intelligence, when first they come into our ken, and they had already split into two or more very distinctive races.
These new-comers did not migrate into Europe in the strict sense of the word, but rather, as century by century the climate ameliorated, they followed the food and plants to which they were accustomed, as those spread into the new realms that opened to them. The ice was receding, vegetation was increasing, big game of all sorts was becoming more abundant. Steppe-like conditions, conditions of pasture and shrub, were bringing with them vast herds of wild horse. Ethnologists (students of race) class these new human races in one same species as ourselves, and with all human races subsequent to them, under one common specific name of Homo sapiens. They had quite human brain-cases and hands. Their teeth and their necks were anatomically as ours are.
Now here again, with every desire to be plain and explicit with the reader, we have still to trouble him with qualified statements and notes of interrogation. There is now an enormous literature about these earliest true men, the men of the Later Palæolithic Age, and it is still for the general reader a very confusing literature indeed. It is confusing because it is still confused at the source. We know of two distinct sorts of skeletal remains in this period, the first of these known as the Cro-Magnon race, and the second the Grimaldi race; but the great bulk of the human traces and appliances we find are either without human bones or with insufficient bones for us to define their associated physical type. There may have been many more distinct races than these two. There may have been intermediate types. In the grotto of Cro-Magnon it was that complete skeletons of one main type of these Newer Palæolithic men, these true men, were first found, and so it is that they are spoken of as Cro-Magnards.