Origins—Constituent Elements.
It is generally assumed that this population represents the easterly migration of that long-headed type which can be traced across the continents of Europe and Asia in the Stone Age, and that their entrance into the islands was effected at a time when the channel separating them from the mainland was neither so wide nor so deep as at the present time. Later Manchu-Korean invaders from the West, Mongols from the South, and Malays from the East pressed the aborigines further and further north, to Yezo, Sakhalin and the Kuriles. But it is possible that the Ainu were not the earliest inhabitants of Japan, for they themselves bear witness to predecessors, the Koro-pok-guru, mentioned above (p. 260). Neither is the assumption of kinship between the Ainu and prehistoric populations of Western Europe accepted without demur. Deniker, while acknowledging the resemblance to certain European types, classes the Ainu as a separate race, the Palaeasiatics. For while in head-length, prominent superciliary ridges, hairiness and the form of the nose they may be compared to Russians, Todas, and Australians, their skin colour, prominent cheek-bones, and other somatic features make any close affinity impossible[660].
Japanese Type.
In spite of these various ingredients the Japanese people may be regarded as fairly homogeneous. Apart from some tall and robust persons amongst the upper classes, and athletes, acrobats, and wrestlers, the general impression that the Japanese are a short finely moulded race is fully borne out by the now regularly recorded military measurements of recruits, showing for height an average of 1.585 m. (5 ft. 2½ in.) to 1.639 m. (5 ft. 4½ in.), for chest 33 in., and disproportionately short legs. Other distinctive characters, all tending to stamp a certain individuality on the people, taken as a whole and irrespective of local peculiarities, are a flat forehead, great distance between the eyebrows, a very small nose with raised nostrils, no glabella, no perceptible nasal root[661]; an active, wiry figure; the exposed skin less yellow than the Chinese, and rather inclining to a light fawn, but the covered parts very light, some say even white; the eyes also less oblique, and all other characteristically Mongol features generally softened, except the black lank hair, which in transverse section is perhaps even rounder than that of most other Mongol peoples[662].
Japanese and Liu-Kiu Islanders.
With this it will be instructive to compare F. H. H. Guillemard's graphic account of the Liu-Kiu islanders, whose Koreo-Japanese affinities are now placed beyond all doubt: "They are a short race, probably even shorter than the Japanese, but much better proportioned, being without the long bodies and short legs of the latter people, and having as a rule extremely well-developed chests. The colour of the skin varies of course with the social position of the individual. Those who work in the fields, clad only in a waist-cloth, are nearly as dark as a Malay, but the upper classes are much fairer, and are at the same time devoid of any of the yellow tint of the Chinaman. To the latter race indeed they cannot be said to bear any resemblance, and though the type is much closer to the Japanese, it is nevertheless very distinct.... In Liu-Kiu the Japanese and natives were easily recognised by us from the first, and must therefore be possessed of very considerable differences. The Liu-Kiuan has the face less flattened, the eyes are more deeply set, and the nose more prominent at its origin. The forehead is high and the cheek-bones somewhat less marked than in the Japanese; the eyebrows are arched and thick, and the eyelashes long. The expression is gentle and pleasing, though somewhat sad, and is apparently a true index of their character[663]."
This description is not accepted without some reserve by Chamberlain, who in fact holds that "the physical type of the Luchuans resembles that of the Japanese almost to identity[664]." In explanation however of the singularly mild, inoffensive, and "even timid disposition" of the Liu-Kiuans, this observer suggests "the probable absence of any admixture of Malay blood in the race[665]." But everybody admits a Malay element in Japan. It would therefore appear that Guillemard must be right, and that, as even shown by all good photographs, differences do exist, due in fact to the presence of this very Malay strain in the Japanese race.
The Languages and Religions.
Elsewhere[666] Chamberlain has given us a scholarly account of the Liu-Kiu language, which is not merely a "sister," as he says, but obviously an elder sister, more archaic in structure and partly in its phonetics, than the oldest known form of Japanese. In the verb, for instance, Japanese retains only one past tense of the indicative, with but one grammatical form, whereas Liu-Kiuan preserves the three original past tenses, each of which possesses a five-fold inflection. All these racial, linguistic, and even mental resemblances, such as the fundamental similarity of many of their customs and ways of thought, he would explain with much probability by the routes followed by the first emigrants from the mainland. While the great bulk spread east and north over the great archipelago, everywhere "driving the aborigines before them," a smaller stream may have trended southward to the little southern group, whose islets stretch like stepping-stones the whole way from Japan to Great Liu-Kiu[667].
Cult of the Dead.