There is much speculation, but no certainty, regarding the origin of the Japanese people. It is, however, generally held that the Japanese race is made up of two main elements—one Mongolian, which came to Japan from Northern Asia by way of Korea, and the other Malayan; a third strain being possibly supplied to some small extent by the Ainu aborigines, whom the invaders found in occupation of the country. The prevailing type of feature is Mongolian, though scientific research claims to have discovered traces of the physical characteristics of other Asiatic races. If the earliest Japanese records provide little trustworthy material for the historian, they show how the legendary heroes of oral tradition became in the hands of successive chroniclers the deified ancestors of the reigning dynasty, and indicate the process of transition by which the feelings of respect and admiration they inspired developed into a popular belief in the quasi-divinity of Japanese Sovereigns. It is in this no-man’s-land, where no clear boundaries divide fable from history, that we are from the first confronted with the primitive native religion, and realize its weakness as a civilizing influence. From these same records, nevertheless, as well as from scanty Chinese sources, we glean certain general facts bearing on the early development of Japan. Chinese culture is seen trickling in at a very early date; we hear of the adoption at some time in the fifth century of Chinese ideographs, the Japanese following in this respect the example of their Korean neighbours, who, like themselves, had originally no written language of their own; and we learn of the introduction of Buddhism a century later. The advent of Buddhism was a notable factor in Japan’s progress. Its missionaries assisted the spread of the Chinese written language, and thus paved the way for the introduction in A.D. 645 of what is known as the Great Reform. The Great Reform gave its name to the first year-period of Japanese chronology, and to Japanese history its first certain date. It was the outcome of a movement having for its object the repair of the authority of the Throne, which had been weakened by the separatist tendencies of the Sōga family. The new form of government then established, in imitation of changes made under the T’ang dynasty in China, was a centralized bureaucracy. The supreme control of affairs was vested in the Council of State. In this Council the Prime Minister presided, and with him were associated the two assistant Ministers of State and the President of the Privy Council. Of the eight Boards, or Departments of State, five dealt mainly, but by no means exclusively, with matters relating to Ceremonial, Religion, the Army, Finance and Taxation respectively; the other three having the direction of business connected more immediately with the Imperial Court. There seems, however, to have been no very clear-cut division of business, Court interests being apparently mixed up with the affairs of every department. This change in the form of government was only one of many results caused by the inrush of Chinese ideas at this time. The influence of the wave of Chinese culture which swept over the country permeated every part of the national fabric, remodelling the social system, and laying the foundations of Japanese law, education, industries and art.