7. In what ways did the suffering caused by the Great War indicate an increase in world ethics? [1] See Chapter XXVII. [2] See Cooley, _Social Organization_, chap. III. [3] The transition from the ethnic state to the modern civic state was through conflict, conquest, and race amalgamation. {57} _PART II_ FIRST STEPS OF PROGRESS CHAPTER IV PREHISTORIC MAN _The Origin of Man Has not Yet Been Determined_.--Man's origin is still shrouded in mystery, notwithstanding the accumulated knowledge of the results of scientific investigation in the field and in the laboratory. The earliest historical records and relics of the seats of ancient civilization all point backward to an earlier period of human life. Looking back from the earliest civilizations along the Euphrates and the Nile that have recorded the deeds of man so that their evidences could be handed down from generation to generation, the earlier prehistoric records of man stretch away in the dim past for more than a hundred thousand years. The time that has elapsed from the earliest historical records to the present is only a few minutes compared to the centuries that preceded it. Wherever we go in the field of knowledge, we shall find evidences of man's great antiquity. We know at least that he has been on earth a long, long period. As to the method of his appearance, there is no absolutely determining evidence. Yet science has run back into the field of conjecture with such strong lines that we may assume with practical certainty something of his early life. He stands at the head of the zoological division of the animal kingdom. The Anthropoid Ape is the animal that most nearly resembles man. It might be said to stand next to man in the procession of species. So far as our knowledge can ascertain, it appears that man was developed in the same manner as the higher types in the animal and vegetable world, namely, by the process of evolution, and by evolution we mean continuous progressive change according to law, from external and internal stimuli. The process of evolution is not a process of creation, nor does evolution move in {58} a straight line, but through the process of differentiation. In no other way can one account for the multitudes of the types and races of the human being, except by this process of differentiation which is one of the main factors of evolution. Accompanying the process of differentiation is that of specialization and integration. When types become highly specialized they fail to adapt themselves to new environments, and other types not so highly specialized prevail. So far as the human race is concerned, it seems to be evolved according to the law of sympodial development--that is, a certain specialized part of the human race develops certain traits and is limited in its adaptability to a specific environment. Closely allied with this are some individuals or groups possessing human traits