Human diversities are deep enough to make the idea of 'European Man' a mere abstraction; we need to think rather of 'European Men' and to study with that broad fact always in mind, realizing that Russians and ourselves are not to be thought of as at different steps on the same ladder, and that the unity which has undoubtedly been trying to grow up in Europe must be a unity-in-diversity with an accompanying growth of education in toleration and breadth of appreciation.
As physical racial facts may be claimed to be to a large extent very old, it will be well to begin our survey with them, but for our present purposes it is permissible to neglect the scattered facts thus far ascertained about the European men of the days before the close of the last major phase (Würmian phase) of the Ice Age. From the period of climatic improvement (Aurignacian) next succeeding, we have several human skeletons that demonstrate the presence already at that early time of diverse physical types. One type, known from two skeletons at Grimaldi (lower Aurignacian), as well as from later remains, shows features in the mouth and nose as well as in the very long and high skull which relate it to types that have become specialized as Negroids of various kinds in Africa, but need not have had marked negroid characters in the first instance. Another type also possessed of a very long and high-ridged skull is known from several skeletons (Brunn, Brux, Combe Capelle, &c.), of which that from Brunn is the best known. There can be little doubt that this type with its strong brows, deep-set low eyes, cheek-bones projecting at the sides, broad nose, projecting upper jaw and dark colouring is an element in the modern population of remote spots in several parts of the maritime fringe of Europe to-day, and was an important element (whatever its colouring then) among the people of the 'Kurgan' burials so numerous along the borders of the South Russian steppe. Nor can we any longer doubt that this type, modified in the course of time, has been an important element in the evolution of modern European breeds. A third type remains mysterious; it is that represented by the skeleton of an old man at Cro-Magnon with tall stature and a fairly long head, which, however, was not very high or ridged. The nose was narrower, but the eyes were low and the jaws and cheek-bones very strong. The matter has been confused by the frequent application of the term 'Cro-Magnon Type' to all the above indiscriminately, mainly on the ground of long-headedness, and this makes it difficult at times to ascertain what writers really mean when they speak of survivals of the Cro-Magnon type in modern populations. There is, however, no doubt from Collignon's careful descriptions that both the Cro-Magnon and the Combe Capelle types survive in the Dordogne district of Central France, and it seems likely that the former as well as the latter also survives at least in the north of the Iberian peninsula.
However this may be, it seems clear that the peoples of Europe in the Aurignacian and the next following ages (Solutrean and Magdalenian) were long-headed, with varied accompanying characters which may still be seen nowadays. Those were ages of intermittent retreat of the Ice Sheets which had for ages previously made Europe so inhospitable to mankind, but at the end of the Magdalenian Age the snow line definitively crept up the mountain sides to something like its present level, and the mountain regions were made available for a beginning of human occupation. The coming of broad-headed men, probably from Asia Minor, then less divided from Europe, is characteristic of this period of change, and the mountain axis of Europe has ever since been a region of broad-headed men, separating provinces of long-headed men to the north around the Baltic and (for a time) in Russia, and to the south around the western Mediterranean, then becoming increasingly cut off from tropical Africa by the supervention of desert conditions, in place of grassland, in what we now call the Sahara.
The long-headed men around the Baltic and in early prehistoric Russia became, in course of time, what is called the Nordic race, and those around the western Mediterranean, with allied elements in the Aegean Isles, the Mediterranean race. In both cases they include survivors of the Combe Capelle type, and in the latter at least some of the Grimaldi type as well, and they are both still long-headed, though in both there has been a general, if slight, rounding of the head, so that it is less long and narrow than it was in early times. In the cool and cloudy north, with long continuance of the open-air life, sex maturity has come late, growth has been long continued, muscularity and the accompanying roughness of bone have been maintained and even developed, the nose has grown long and narrow, and with it the face has lengthened, the colouring has become fair. In the sunny south the settled life is of old standing, and sex maturity comes early. Growth is not so long continued, muscularity is less developed, and the tendency is towards smoothness of bone, the nose and face are moderate, the colouring is rather dark.
The provinces of Nordic and Mediterranean races are widely separated by the mountain zone in Central Europe, but in the west they grade into one another, and here the old long-headed type has become neither purely Nordic nor purely Mediterranean. Especially in Britain, of old a refuge of the past off the shores of Europe, Aurignacian types have persisted markedly, and this is still more noteworthy in Ireland. The mass of the population of our islands is long-headed and intermediate in character between the two differentiated races, tall, gaunt, and dark in parts of the Scottish Highlands and North Wales, short and almost Mediterranean in parts of South Wales and Ireland, and 'betwixt and between' almost everywhere. Probably almost every hundred, not to say every parish, of the British Isles has examples of these Intermediate Types, as well, of course, as of Nordics due to immigrations from Scandinavia and the Baltic.
The broad-heads of the mountain axis of Central Europe are technically called the Alpine race. They are distinguished by a thick-set appearance, rather straight brown or chestnut hair, grey to brown eyes, often a dry whitish skin, a short face, a moderate nose, sometimes pointing out rather markedly. In the Illyrian Alps and parts of the Carpathians, and stretching from the latter, on the south side of the Pripet Marshes away into Muscovy, this stock is often tall and dark. In the Swiss and French Alps it is rather short and stocky. In the Balkan Peninsula it is often characterized by a flattening of the back of the very high and short head; in the west the tendency is rather towards general rounding of the head.
It is interesting to notice from the above that the main facts of distribution of race type in Europe probably date from the beginning of the Neolithic Age, the period of ultimate recession of the great Ice Sheets. In the subsequent ages there has probably been modification of the race types to some extent, but the main facts of distribution of human stocks in Europe became settled in that early time.
Some of the modifications of this scheme must be noticed briefly.
The old long-headed stocks of the Steppe border in South Russia probably still form elements of the mixed Cossack populations, but the spreads of broad-heads both from the Carpathian forelands and from the Asiatic steppe have altered the average type a good deal. Asiatic broad-heads with the big cheek-bones and Tungus (often called Mongol) eyes have also long occupied the Arctic border of Russia, as Lapps, Samoyedes, &c., and, mixed with Nordics, they form the Finn populations. Their features have at times been said to be distinguishable right down the east side of the Baltic into East Prussia in individuals here and there; one certainly finds them now and again in Gothlanders and even in Swedes. The net result is that the long-headed type is not a dominant element in Russia, save perhaps in parts of the one time Baltic provinces, that is in the new Baltic States.
The line along which the hill masses of Central Europe grade down into the European plain that stretches from Ypres to the Urals is marked out in many ways in European life. Not far from it is the main line of European coalfields, a most momentous factor for modern times. It is a line of exchange towns of ancient renown. Near it is a belt of loess, that is of loose wind-blown material laid there in the interglacial phases of the Ice Age, so fine grained that it does not encourage and has never encouraged tree growth, though it is valuable for cultivation. The loess belt, because of its freedom from forest, was naturally of importance as a line of movement of early man as well as a line of early settlement, and it lay between the province of the long-heads (Nordics) and that of the broad-heads (Alpines). All along here are found and have long been found breeds originating from intimate inter-mixture of Nordic and Alpine stocks.
The general fact seems to be that the head form is derived from the Alpine, and so is broad, but the colouring is more usually inherited from the other side, and so is generally fair. There are many varieties with distinctive facial and other features, but the broad fact is that the southern zone of the European plain, where the two stocks have had much fractionated contact (contacts of small groups) in little clearings of the forests that grew in Neolithic times, is a region of Alpine-Nordic stocks which have spread to Britain and through the Danube gaps towards the Balkans as well as in many other directions.
The amount of intermixture and intermediacy on the south side of the mountain axis is less marked, for here there were not the same occasions for mingling of small groups. The broad-headed stocks have, however, spread downhill, and occupy a great deal of North Italy. They are of less consequence in the Iberian Peninsula; the Balkan Peninsula is and probably has been their home from early times. A broad-headed stock with markedly dark colouring and frequently massive build is found on coastal patches here and there along the Mediterranean shores and on the coasts of Western Europe. It occurs as an important percentage in many coastal communities, and is almost certainly composed of survivors of prospectors and traders of the dawn of the Bronze Age and some later periods.
These few references must suffice to illustrate the kind of modification which the early and fundamental racial distribution has undergone; it may be condensed into the statement that broad-headedness has on the whole spread downhill, and has increasingly limited long-headedness to the fringes of Europe. It has done this not so much by sheer replacement of population as through its biological advantage of dominance over long-headedness in many cases of mixture. There has, however, been a definite spread of people of broad-headed type into the Russian plain, as well as many movements of peoples, to some of which we get references in the early chapters of written history.