Читать книгу History of Human Society - Frank Wilson Blackmar - Страница 5

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 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 that are less highly specialized, and hence are adaptable to new conditions. Under new conditions the main stem of development perishes and the budded branch survives.

We have abundant pictures of this in prehistoric times, and records show that this also has been the common lot of man. Modern man thus could not have been developed from any of the living species of the Anthropoid Apes, but he might have had a common origin in the physical, chemical, and vital forces that produced the apes. One line of specialization made the ape, another line made man. Subsequently the separation of man into the various races and species came about by the survival of some races for a time, and then to be superseded by a branch of the same race which differentiated in a period of development before high specialization had taken place.

Methods of Recounting Prehistoric Time.8 – Present time is measured in terms of centuries, years, months, weeks, days, hours, minutes, and seconds, but the second is the determining power of mechanical measurement, though it is derived mainly by the movement of the earth around the sun and the turning of the earth on its axis. Mechanically we have derived the second as the unit. It is easy for us to think in hours or days or weeks, though it may be the seconds tick off unnoticed and the years glide by unnoticed; but it is difficult to think in centuries – more difficult in millions of years. The little time that man has been on earth compared with the creation of the earth makes it difficult for us to estimate the time of creation. The much less time in the historical period makes it seem but a flash in the movement of the creation.

TWENTY-FOUR-HOUR DIAL ILLUSTRATING HUMAN CHRONOLOGY9

Twenty-five thousand years equals one hour

Twenty-four hour dial

Age of modern man 10,000 years = less than half an hour.

Age of Crô-Magnon type 25,000 years = one hour.

Age of Neanderthal type 50,000 years = two hours.

Age of Piltdown type 150,000 years = six hours.

Age of Heidelberg type 375,000 years = fifteen hours.

Age of Pithecanthropus 500,000 years = twenty hours.

Beginning of Christian era 2,000 years = 4.8 minutes.

Discovery of America 431 years = about 1 minute.

Declaration of Independence 137 years = about 21 seconds.

There are four main methods of determining prehistoric time.10 One is called the (1) geologic method, which is based upon the fact that, in a slowly cooling earth and the action of water and frost, cold and heat, storm and glacier and volcanic eruption, the rocks on the earth are of different ages. If they had never been disturbed from where they were first laid down, it would be very easy to reckon time by geological processes. If you had a stone column twenty feet high built by a machine in ten hours' time, and granting that it worked uniformly, it would be easy to see just at what hour of the period a layer of stone four feet from the bottom, or ten feet from the top, was laid. If, however, in the building of the wall, it should have toppled over several times and had to be rebuilt, it would require considerable study to see just at what hour a certain stone was put in the wall. Studying the geology of the earth in a large way, it is easy to determine what strata of the earth are oldest, and this may be verified by a consideration of the process in which these rocks were being made. Chemistry and physics are thus brought to the aid of geology. It is easy to determine whether a rock has been fused by a fire or whether it has been constructed by the slow action of water and pressure of other rocks. If to-day we should find in an old river bed which had been left high and dry on a little mesa or plateau above the present river bottom, layers of earth that had been put down by water, and we could find how much of each layer was made in a single year, it would be easy to estimate the number of years it took to make the whole deposit. Also if we could find in the lowest layer certain relics of the human race, we could know that the race lived at that time. If we should find relics later on of a different nature, we should be able to estimate the progress of civilization.

The second method is of (2) paleontology, which is developed along with geology. In this we have both the vertebrate and invertebrate paleontology, which are divisions of the science which treats of ancient forms of animal and vegetable life. There are many other divisions of paleontology, some devoting themselves entirely to animal life and others to vegetable, as, for instance, paleobotany. As plants and animals have gradually developed from lower to higher forms and the earth has been built gradually by formations at different periods of existence, by a comparison of the former development with the latter, that is, comparison with the earth, or inorganic, development to the life, or organic, development, we are enabled to get a comparative view of duration. Thus, if in a layer of earth, geological time is established and there should be found bones of an animal, the bones of a man, and fossilized forms of ancient plants, it would be easy to determine their relative ages.

The third method is that of (3) anatomy, which is a study of the comparative size and shape of the bones of man and other animals as a method of showing relative periods of existence. Also, just as the structure of the bones of a child, as compared with that of a man, would determine their relative ages, so the bones of the species that have been preserved through fossilization may show the relative ages of different types of animals. The study of the skeletons of animals, including those of man, has led to the science of anthropometry.

The fourth method is to study the procession of man by (4) cultures, or the industrial and ornamental implements that have been preserved in the river drift, rocks, and caves of the earth from the time that man used them until they were discovered. Just as we have to-day models of the improvement of the sewing-machine, the reaper, or the flying-machine, each one a little more perfect, so we shall find in the relics of prehistoric times this same gradual development – first a stone in its natural state used for cutting, then chipped to make it more perfect, and finally beautified in form and perfected by polishing.

Thus we shall find progress from the natural stone boulder used for throwing and hammering, the developed product made by chipping and polishing the natural boulder, making it more useful and more beautiful, and so for all the multitude of implements used in the hunt and in domestic affairs. Not only do we have here an illustration of continuous progress in invention and use, but also an adaptation of new material, for we pass from the use of stone to that of metals, probably in the prehistoric period, although the beginnings of the use of bronze and iron come mainly within the periods of historical records.

It is not possible here to follow the interesting history of the glacial movement, but a few words of explanation seem necessary. The Ice Age, or the glacial period, refers to a span of time ranging from 500,000 years ago, at the beginning of the first glaciation, to the close of the post-glacial period, about 25,000 years ago. During this period great ice caps, ranging in the valleys and spreading out on the plains over a broad area, proceeded from the north of Europe to the south, covering at the extreme stages nearly the entire surface of the continent. This great movement consists of four distinct forward movements and their return movements. There is evidence to show that before the south movement of the first great ice cap, a temperate climate extended very far toward the pole and gave opportunity for vegetation now extinct in that region.

But as the river of ice proceeded south, plants and animals retreated before it, some of them changing their nature to endure the excessive cold. Then came a climatic change which melted the ice and gradually drove the margin of the glacier farther north. Immediately under the influence of the warm winds the vegetation and animals followed slowly at a distance the movement of the glacier. Then followed a long inter-glacial period before the southerly movement of the returning ice cap. This in turn retreated to the north, and thus four separate times this great movement, one of the greatest geological phenomena of the earth, occurred, leaving an opportunity to study four different glacial periods with three warmer interglacial and one warm post-glacial.

This movement gave great opportunity for the study of geology, paleontology, and the archeology of man. That is, the story of the relationship of the earth to plant, animal, and man was revealed. The regularity of these movements and the amount of material evidence found furnish a great opportunity for measuring geological time movements and hence the life of plants and animals, including man.

The table on page 64 will contribute to the clearness of this brief statement about the glacial periods.

THE ICE AGE IN EUROPE11

Geological time-unit 25,000 years

Prehistoric Types of the Human Race. – The earliest record of human life yet discovered is the Pithecanthropus Erectus (Trinil), the apelike man who walked upright, found in Java by Du Bois, about the year 1892. Enough of the skeletal remains of human beings were found at this time to indicate a man of rather crude form and low brain capacity (about 885 c.c.), with possible powers of speech but with no probably developed language or no assumption of the acquaintance with the arts of life.12

The remains of this man associated with the remains of one other skeleton, probably a woman, and with the bones of extinct animals, were found in a geological stratum which indicates his age at about 500,000 years. Professor McGregor, after a careful anatomical study, has reproduced the head and bust of Pithecanthropus, which helps us to visualize this primitive species as of rather low cultural type. The low forehead, massive jaw, and receding chin give us a vision of an undeveloped species of the human race, in some respects not much above the anthropoid apes, yet in other characters distinctly human.

There follows a long interval of human development which is only conjectural until the discovery of the bones of the Heidelberg man, found at the south of the River Neckar. These are the first records of the human race found in southern Europe. The type of man is still apelike in some respects, but far in advance of the Pithecanthropus in structure and general appearance. The restoration by the Belgian artist Mascré under the direction of Professor A. Rotot, of Brussels, is indicative of larger brain capacity than the Trinil race. It had a massive jaw, distinctive nose, heavy arched brows, and still the receding chin. Not many cultural remains were found in strata of the second interglacial period along with the remains of extinct animals, such as the ancient elephant, Etruscan rhinoceros, primitive bison, primitive ox, Auvergne bear, and lion. A fauna and a flora as well as a geological structure were found which would indicate that this race existed at this place about 375,000 years ago. From these evidences very little may be determined of the Heidelberg man's cultural development, but much may be inferred. Undoubtedly, like the Pithecanthropus, he was a man without the tools of civilization, or at least had not developed far in this way.

About 150,000 years ago there appeared in Europe races of mankind that left more relics of their civilization.13 These were the Neanderthaloid races. There is no evidence of the connection of these races with the Java man or the Heidelberg man. Here, as elsewhere in the evolution of races and species, nature does not work in a straight line of descent, but by differentiation and variation.

In 1856 the first discovery of a specimen of the Neanderthal man was found at the entrance of a small ravine on the right bank of the River Dussel, in Rhenish Prussia. This was the first discovery of the Paleolithic man to cause serious reflection on the possibility of a prehistoric race in Europe. Its age is estimated at 50,000 years. This was followed by other discoveries of the Mid-Pleistocene period, until there were a number of discoveries of similar specimens of the Neanderthal race, varying in some respects from each other. The first had a brain capacity of 1230 c.c., while that of the average European is about 1500 c.c. Some of the specimens showed a skull capacity larger than the first specimen, but the average is lower than that of any living race, unless it be that of the Australians.

Later were discovered human remains of a somewhat higher type, known as the Aurignacian, of the Crô-Magnon race. These are probably ancestors of the living races of Europe existing 25,000 to 50,000 years ago. They represent the first races to which may be accorded definite relationship with the recent races.

Thus we have evidences of the great antiquity of man and a series of remains showing continual advancement over a period of nearly 500,000 years – the Pithecanthropus, Heidelberg, Piltdown, and Neanderthal, though expressing gradations of development in the order named, appear to be unrelated in their origin and descent, and are classed as separate species long since extinct. The Crô-Magnon people seem more directly related to modern man. Perhaps in the Neolithic Age they may have been the forebears of present races, either through direct or indirect lines.

The Unity of the Human Race. – Though there are evidences, as shown above, that there were many branches of the human race, or species, some of which became extinct without leaving any records of the passing on of their cultures to others, there is a pretty generally concerted opinion that all branches of the human race are related and have sprung from the same ancestors. There have been differences of opinion regarding this view, some holding that there are several centres of development in which the precursor of man assumed a human form (polygenesis), and others holding that according to the law of differentiation and zoological development there must have been at some time one origin of the species (monogenesis). So far as the scientific investigation of mankind is concerned, it is rather immaterial which theory is accepted. We know that multitudes of tribes and races differ in minor parts of structure, differ in mental capacity, and hence in qualities of civilization, and yet in general form, brain structure, and mental processes, it is the same human being wherever found. So we may assume that there is a unity of the race.

If we consider the human race to have sprung from a single pair, or even the development of man from a single species, it must have taken a long time to have developed the great marks of racial differences that now exist. The question of unity or plurality of race origins has been much discussed, and is still somewhat in controversy, although the predominance of evidence is much in favor of the descent of man from a single species and from a single place. The elder Agassiz held that there were several separate species of the race, which accounts for the wide divergence of characteristics and conditions. But it is generally admitted from a zoological standpoint that man originated from a single species, although it does not necessarily follow that he came from a single pair. It is the diversity or the unity of the race from a single pair which gives rise to the greatest controversy.

There is a wide diversity of opinion among ethnologists on this question. Agassiz was followed by French writers, among whom were Topinard and Hervé, who held firmly to the plurality of centres of origin and distribution. Agassiz thought there were at least nine centres in which man appeared, each independent of the others. Morton thought he could point out twenty-two such centres, and Nott and Gliddon advanced the idea that there were distinct races of people. But Darwin, basing his arguments upon the uniformity of physical structure and similarity of mental characteristics, held that man came from a single progenitor. This theory is the most acceptable, and it is easily explained, if we admit time enough for the necessary changes in the structure and appearance of man. It is the simplest hypothesis that is given, and explains the facts relative to the existence of man much more easily than does the theory in reference to diversity of origins. The majority of ethnologists of America and Europe appear to favor the idea that man came from a single pair, arose from one place, and spread thence over the earth's surface.

The Primitive Home of Man May Be Determined in a General Way. – The location of the cradle of the race has not yet been satisfactorily established. The inference drawn from the Bible story of the creation places it in or near the valley of the Euphrates River. Others hold that the place was in Europe, and others still in America. A theory has also been advanced that a continent or group of large islands called Lemuria, occupying the place where the Indian Ocean now lies, and extending from Ceylon to Madagascar, was the locality in which the human race originated. The advocates of this theory hold to it chiefly on the ground that it is necessary to account for the peopling of Australia and other large islands and continents, and that it is the country best fitted by climate and other physical conditions for the primitive race. This submerged continent would enable the races to migrate readily to different parts of the world, still going by dry land.

There is little more than conjecture upon this subject, and the continent called Lemuria is as mythical as the Ethiopia of Ptolemy and the Atlantis of Plato. It is a convenient theory, as it places the cradle of the race near the five great rivers, the Tigris, Euphrates, Indus, Ganges, and the Nile. The supposed home also lies in a zone in which the animals most resembling man are found, which is an important consideration; as, in the development of the earth, animals appeared according to the conditions of climate and food supply, so the portion of the earth best prepared for man's early life is most likely to be his first home.

Although it is impossible to determine the first home of man, either from a scientific or an historical standpoint, there are a few well-acknowledged theories to be observed: First, as the islands of the ocean were not peopled when first discovered by modern navigators, it is reasonable to suppose that the primitive home of man was on one of the continents. As man is the highest and last development of organic nature, it is advocated, with considerable force of argument, that his first home was in a region suitable to the life of the anthropoid apes. As none of these, either living or fossil, are found in Australia or America, these continents are practically excluded from the probable list of places for the early home of man.

In considering the great changes which have taken place in the earth's surface, southern India and southern Africa were large islands at the time of man's appearance; hence, there is little probability of either of these being the primitive home. None of the oldest remains of man have been found in the high northern latitudes of Europe or America. We have then left a strip of country on the southern slope of the great mountain chain which begins in western Europe and extends to the Himalaya Mountains, in Asia, which appears to be the territory in which was situated the early home of man. The geological relics and the distribution of the race both point to the fact that in this belt man's life began; but it is not determined whether it was in Europe or in Asia, there being adherents to both theories.

The Antiquity of Man Is Shown in Racial Differentiation. – Granted that the life of the human race has originated from a common biological origin and from a common geographical centre, it has taken a very long time for the races to be differentiated into the physical traits they possess to-day, as it has taken a long time for man to spread over the earth. The generalized man wandering along the streams and through the forests in search of food, seeking for shelter under rocks and in caves and trees, was turned aside by the impassable barriers of mountains, or the forbidding glacier, the roaring torrent, or the limits of the ocean itself, and spread over the accessible parts of the earth's surface until he had covered the selected districts on the main portions of the globe. Then came race specialization, where a group remained a long time in the same environment and inbred in the same stock, developing specialized racial characters. These changes were very slow, and the wide difference to-day between the Asiatic, the African, and the European is indicative of the long period of years which brought them about. Certainly, six thousand years would not suffice to make such changes.

Of course one must realize that just as, in the period of childhood, the plastic state of life, changes of structure and appearance are more rapid than in the mature man, after traits and characters have become more fixed, so by analogy we may assume that this was the way of the human race and that in the earlier period changes were more rapid than they are to-day. Thus in the cross-fertilizations and amalgamation of races we would expect a slower development than under these earlier conditions, yet when we realize the persistence of the types of Irish and German, of Italian and Greek, of Japanese and Chinese, even though the races become amalgamated, we must infer that the racial types were very slow in developing.

If we consider the variations in the structure and appearance of the several tribes and races with which we come in contact in every-day life, we are impressed with the amount of time necessary to make these changes. Thus the Anglo-American, whom we sometimes call Caucasian, taken as one type of the perfection of physical structure and mental habit, with his brown hair, having a slight tendency to curl, his fair skin, high, prominent, and broad forehead, his great brain capacity, his long head and delicately moulded features, contrasts very strongly with the negro, with his black skin, long head, with flat, narrow forehead, thick lips, projecting jaw, broad nose, and black and woolly hair. The Chinese, with his yellow skin, flat nose, black, coarse hair, and oblique, almond-shaped eyes, and round skull, marks another distinct racial type. Other great races have different characteristics, and among our own race we find a further separation into two great types, the blonds and the brunettes.

What a long period of time must have elapsed to have changed the racial characteristics! From pictures made three thousand years ago in Egypt the differences of racial characteristics were very clearly depicted in the hair, the features of the face, and, indeed, the color of the skin. If at this period the racial differences were clearly marked, at what an early date must they have been wanting! So, also, the antiquity of man is evinced in the fact that the oldest skeletons found show him at that early period to be in possession of an average brain capacity and a well-developed frame. If changes in structure have taken place, they have gradually appeared only during a long period of years. Yet, when it is considered that man is a migratory creature, who can adapt himself to any condition of climate or other environment, and it is realized that in the early stage of his existence his time was occupied for a long period in hunting and fishing, and that from this practice he entered the pastoral life to continue, to a certain extent, his wanderings, it is evident that there is sufficient opportunity for the development of independent characteristics. Also the effects of sun and storm, of climate and other environments have a great influence in the slow changes of the race which have taken place. The change in racial traits is dependent largely upon biological selection, but environment and social selection probably had at least indirect influence in the evolution of racial characters.

The Evidences of Man's Ancient Life in Different Localities. – The sources of the remains of the life of primitive man are (1) Caves, (2) Shell Mounds, (3) River and Glacial Drift, (4) Burial Mounds, (5) Battlefields and Village Sites, and (6) Lake Dwellings. It is from these sources that most of the evidence of man's early life has come.

Caves (1). – It has been customary to allude to the cave man as if he were a distinct species or group of the human race, when in reality men at all times through many thousands of years dwelt in caves according to their convenience. However, there was a period in European life when groups of the human race used caves for permanent habitations and thus developed certain racial types and habits. Doubtless these were established long enough in permanent seats to develop a specialized type which might be known as the cave man, just as racial types have been developed in other conditions of habitation and life. What concerns us most here is that the protection which the cave afforded this primitive man has been a means of protecting the records of his life, and thus added to the evidence of human progress. Many of these caves were of limestone with rough walls and floor, and in most instances rifts in the roof allowed water to percolate and drop to the floor.

Frequently the water was impregnated with limestone solution, which became solidified as each drop left a deposit at the point of departure. This formed rough stalactites, which might be called stone icicles, because their formation was similar to the formation of an icicle of the water dropping from the roof. So likewise on the floor of the cave where the limestone solution dropped was built up from the bottom a covering of limestone with inverted stone icicles called stalagmites. Underneath the latter were found layer after layer of relics from the habitation of man, encased in stone to be preserved forever or until broken into by some outside pressure. Of course, comparatively few of all the relics around these habitations were preserved, because those outside of the stone encasement perished, as did undoubtedly large masses of remains around the mouth of the cave.

In these caves of Europe are found the bones of man, flint implements, ornaments of bone with carvings, and the necklaces of animals' teeth, along with the bones of extinct animals. In general the evidence shows the habits of the life of man and also the kind of animals with which he associated whose period of life was determined by other evidence. Besides this general evidence, there was a special determination of the progress of man, because the relics were in layers extending over a long period of years, giving evidence that from time to time implements of higher order were used, either showing progress or that different races may have occupied the cave at different times and left evidences of their industrial, economic, and social life. In some of the caves skulls have been discovered showing a brain case of an average capacity, along with others of inferior size. Probably the greater part of this cave life was in the upper part of the Paleolithic Stone Age.

In some of these caves at the time of the Magdalenian culture, which was a branch of the Crô-Magnon culture, there are to be found drawings and paintings of the horse, the cave bear, the mammoth, the bison, and many other animals, showing strong beginnings of representative art. Also, in these caves were found bones and stone implements of a more highly finished product than those of the earlier primitive types of Europe.

Shell Mounds (2). – Shell mounds of Europe and America furnish definite records of man's life. The shell mounds of greatest historic importance are found along the shores of the Baltic in Denmark. Here are remains of a primitive people whose diet seems to be principally shell-fish obtained from the shores of the sea. Around their kitchens the shells of mussels, scallops, and oysters were piled in heaps, and in these shell mounds, or Kitchenmiddens, as they are called (Kjokkenmoddings), are found implements, the bones of birds and mammals, as well as the remains of plants. Also, by digging to the bottom of these mounds specimens of pottery are found, showing that the civilization belonged largely to the Neolithic period of man.

There are evidences also of the succession of the varieties of trees corresponding to the evidences found in the peat bogs, the oak following the fir, which in turn gave way to the beech. These refuse heaps are usually in ridgelike mounds, sometimes hundreds of yards in length. The weight of the millions of shells and other refuse undoubtedly pressed the shells down into the soft earth and still the mound enlarged, the habitation being changed or raised higher, rather than to take the trouble to clear away the shells from the habitation. The variety of implements and the degrees of culture which they exhibit give evidence that men lived a long time in this particular locality. Undoubtedly it was the food quest that caused people to assemble here. The evidences of the coarse, dark pottery, the stone axes, clubs, and arrow-heads, and the bones of dogs show a state of civilization in which differentiation of life existed. Shell mounds are also found along the Pacific coast, showing the life of Indians from the time when they first began to use shell-fish for food. In these mounds implements showing the relative stages of development have been found.

River and Glacial Drift (3). – The action of glaciers and glacial rivers and lakes has through erosion changed the surface of the soil, tearing out some parts of the earth's surface and depositing the soil elsewhere. These river floods carried out bones of man and the implements in use, and deposited them, together with the bones of animals with which he lived. Many of these relics have been preserved through thousands of years and frequently are brought to light. The geological records are thus very important in throwing light upon the antiquity of man. It is in the different layers or strata of the earth caused by these changes that we find the relics of ancient life. The earth thus reveals in its rocks and gravel drift the permanent records of man's early life. Historical geology shows us that the crust of the earth has been made by a series of layers, one above the other, and that the geologist determining the order of their creation has a means of ascertaining their relative age, and thus can measure approximately the life of the plants and animals connected with each separate layer.14 The relative ages of fishes, reptiles, and mammals, including man, are thus readily determined.

It is necessary to refer to the method of classification adopted by geologists, who have divided the time of earth-making into three great periods, representing the growth of animal life, determined by the remains found in the strata or drift. These periods mark general portions of time. Below the first is the period of earliest rock formation (Archaean), in which there is no life, and which is called Azoic for that reason. There is a short period above this, usually reckoned as outside the ancient life, on account of the few forms of animals found there; but the first great period (Paleozoic) represents non-vertebrate life, as well as the life of fishes and reptiles, and includes also the coal measures, which represent a period of heavy vegetation. The middle period (Mesozoic) includes the more completely developed lizards and crocodiles, and the appearance of mammals and birds. The animal life of the third period (Cenozoic) resembles somewhat the modern species. This period includes the Tertiary and the Quaternary and the recent sub-periods. Man, the highest being in the order of creation, appears in the Quaternary period. Of the immense ages of time represented by the geological periods the life of man represents but a small portion, just as the existence of man as recorded in history is but a modern period of his great life. The changes, then, which have taken place in the animals and plants and the climate in the different geological periods have been instrumental in determining the age of man; that is, if in a given stratum human remains are found, and the relative age of that stratum is known, it is easy to estimate the relative age of man.

Whether man existed prior to the glacial epoch is still in doubt. Some anthropologists hold that he appeared at the latter part of the Tertiary, that is, in the Pliocene. Reasons for assumption exist, though there is not sufficient evidence to make it conclusive. The question is still in controversy, and doubtless will be until new discoveries bring new evidence. If there is doubt about the finding of human relics in the Tertiary, there is no doubt about the evidence of man during the Quaternary, including the whole period of the glacial epoch, extending 500,000 years into the past.

The relics of man which are found in the drift and elsewhere are the stone implements and the flakes chipped from the flint as he fashioned it into an axe, knife, or hatchet. The implements commonly found are arrow-heads, knives, lance-heads, pestles, etc. Human bones have been found imbedded in the rock or the sand. Articles made of horn, bones of animals, especially the reindeer, notched or cut pieces of wood have been found. Also there are evidences of rude drawings on stone, bone, or ivory; fragments of charcoal, which give evidence of the use of fire in cooking or creating artificial heat, are found, and long bones split longitudinally to obtain marrow for food, and, finally, the remnants of pottery. These represent the principal relics found in the Stone Age; to these may be added the implements in bronze and iron of later periods.

A good example of the use of these relics to determine chronology is shown in the peat bogs of Denmark. At the bottom are found trees of pine which grew on the edges of the bog and have fallen in. Nearer the top are found oak and white birch-trees, and in the upper layer are found beech-trees closely allied to the species now covering the country. The pines, oaks, and birches are not to be seen in that part of the country at present. Here, then, is evidence of the successive replacement of different species of trees. It is evident that it must have taken a long time for one species thus to replace another, but how long it is impossible to say. In some of these bogs is found a gradation of implements, unpolished stone at the bottom, polished stone above, followed by bronze, and finally iron. These are associated with the different forms of vegetable remains.

In Europe stone implements occur in association with fossil remains of the cave lion, the cave hyena, the old elephant and rhinoceros – all extinct species. Also the bones and horns of the reindeer are prominent in these remains, for at that time the reindeer came farther south than at present. In southern France similar implements are associated with ivory and bones, with rude markings, and the bones of man – even a complete skeleton being found at one place. These are all found in connection with the bones of the elk, ibex, aurochs, and reindeer.

Burial Mounds (4). – It is difficult to determine at just what period human beings began to bury their dead. Primarily the bodies were disposed of the same as any other carrion that might occur – namely, they were left to decay wherever they dropped, or were subject to the disposal by wild animals. After the development of the idea of the perpetuation of life in another world, even though it were temporary or permanent, thoughts of preparing the body for its journey into the unknown land and for its residence thereafter caused people to place food and implements and clothing in the grave. This practice probably occurred about the beginning of the Neolithic period of man's existence, and has continued on to the present date.

Hence it is that in the graves of primitive man we find deposited the articles of daily use at the period in which he lived. These have been preserved many centuries, showing something of the life of the people whose remains were deposited in the mounds. Also in connection with this in furtherance of a religious idea were great dolmens and stone temples, where undoubtedly the ancients met to worship. They give some evidence at least of the development of the religious and ceremonial life among these primitive people and to that extent they are of great importance. It is evidence also, in another way, that the religious idea took strong hold of man at an early period of his existence. Evidences of man in Britain from the tumuli, or burial mounds, from rude stone temples like the famous Stonehenge place his existence on the island at a very early date. Judging from skulls and skeletons there were several distinct groups of prehistoric man in Britain, varying from the extreme broad skulls to those of excessive length. They carry us back to the period of the Early Stone Age. Relics, too, of the implements and mounds show something of the primitive conditions of the inhabitants in Britain of which we have any permanent record.

Battlefields and Village Sites (5). – In the later Neolithic period of man the tribes had been fully developed over a great part of the earth's surface, and fought for their existence, principally over territories having a food supply. Other reasons for tribal conflict, such as real or imagined race differences and the ambition for race survival, caused constant warfare. Upon these battlefields were left the implements of war. Those of stone, and, it may be said secondarily, of iron and bronze, were preserved. It is not uncommon now in almost any part of the United States where the rains fall upon a ploughed field over which a battle had been fought, to find exposed a large number of arrow-heads and stone axes, all other perishable implements having long since decayed. Or in some instances the wind blowing the sand exposes the implements which were long ago deposited during a battle. Also, wherever the Indian villages were located for a period of years, the accumulations of utensils and implements occurred which were buried by the action of wind or water. This represents a source of evidence of man's early life.

Lake Dwellings (6). – The idea of protection is evidenced everywhere in the history of primitive man; protection against the physical elements, protection against wild beasts and wilder men. We find along the lakes and bays in both Europe and America the tendency to build the dwelling out in the water and approach it from the land with a narrow walk which could be taken up when not used, or to approach it by means of a rude boat. In this way the dwellers could defend themselves against the onslaughts of tribal enemies. These dwellings have been most numerous along the Swiss lakes, although some are found in Scotland, in the northern coast of South America, and elsewhere. Their importance rests in the fact that, like the shell mounds (Kitchenmiddens), the refuse from these cabins shows large deposits of the implements and utensils that were in use during the period of tribal residence. Here we find not only stone implements, running from the crude form of the Unpolished Stone Age to the highly polished, but also records of implements of bronze and small implements for domestic use of bone and polished stone. Also there are evidences that different tribes or specialized races occupied these dwellings at different times, because of the variation of civilization implied by the implements in use. The British Museum has a very large classified collection of the implements procured from lake dwellings of Switzerland. Other museums also have large collections. A part of them run back into the prehistoric period of man and part extend even down to the historic.

Knowledge of Man's Antiquity Influences Reflective Thinking. – The importance of studying the antiquity of man is the light which it throws upon the causes of later civilization. In considering any phase of man's development it is necessary to realize he has been a long time on earth and that, while the law of the individual life is development, that of the human race is slowly evolutionary; hence, while we may look for immediate and rapid change, we can only be assured of a very slow progressive movement at all periods of man's existence. The knowledge of his antiquity will give us a historical view which is of tremendous importance in considering the purpose and probable result of man's life on earth. When we realize that we have evidence of the struggle of man for five hundred thousand years to get started as far as we have in civilization, and that more changes affecting man's progress may occur in a single year now than in a former thousand years, we realize something of the background of struggle before our present civilization could appear. We realize, also, that his progress in the arts has been very slow and that, while there are many changes in art formation of to-day, we still have the evidences of the primitive in every completed picture, or plastic form, or structural work. But the slow progress of all this shows, too, that the landmarks of civilization of the past are few and far between – distant mile-posts appearing at intervals of thousands of years. Such a contemplation gives us food for thought and should invite patience when we wish in modern times for social transformations to become instantaneous, like the flash of the scimitar or the burst of an electric light.

The evidence that man has been a long time on earth explodes the long-accepted theory of six thousand years as the age of man. It also explodes the theory of instantaneous creation which was expressed by some of the mediaeval philosophers. Indeed, it explodes the theory of a special creation of man without connection with the creation of other living beings. No doubt, there was a specialized creation of man, otherwise he never would have been greater than the anthropoids nor, indeed, than other mammals, but his specialization came about as an evolutionary process which gave him a tremendous brain-power whereby he was enabled to dominate all the rest of the world. So far as philosophy is concerned as to man's life, purpose, and destiny, the influence of the study of anthropology would change the philosopher's vision of life to a certain extent. The recognition that man is "part and parcel" of the universe, subject to cosmic law, as well as a specialized type, subject to the laws of evolution, and, indeed, that he is of a spiritual nature through which he is subjected to spiritual law, causes the philosopher to pause somewhat before he determines the purpose, the life, or the destiny of man.

If we are to inquire how man came into the world, when he came, what he has been doing, how he developed, and whither the human trail leads, we shall encounter many unsolved theories. Indeed, the facts of his life are suggestive of the mystery of being. If it be suggested that he is "part and parcel" of nature and has slowly arisen out of lower forms, it should not be a humiliating thought, for his daily life is dependent upon the lower elements of nature. The life of every day is dependent upon the dust of the earth. The food he eats comes from the earth just the same as that of the hog, the rabbit, or the fish. If, upon this foundation, he has by slow evolution built a more perfect form, developed a brain and a mind which give him the greatest flights of philosophy, art, and religion, is it not a thing to excite pride of being? Could there be any greater miracle than evolving nature and developing life? Indeed, is there any greater than the development of the individual man from a small germ not visible to the naked eye, through the egg, the embryo, infant, youth, to full-grown man? Why not the working of the same law to the development of man from the beginning. Does it lessen the dignity of creation if this is done according to law? On the other hand, does it not give credit to the greatness and power of the Creator if we recognize his wisdom in making the universe, including man, the most important factor, according to a universal plan worked out by far-reacting laws?

SUBJECTS FOR FURTHER STUDY

1. Evidences of the great antiquity of man.

2. Physical and mental traits of the anthropoid apes.

3. The life and culture of the Neanderthal Race.

4. What are the evidences in favor of the descent of man from a single progenitor?

5. Explain the law of differentiation as applied to plants and animals.

6. Compare in general the arts of man in the Old Stone Age with those of the New Stone Age.

7. What has been the effect of the study of prehistoric man on modern thought as shown in the interpretation of History? Philosophy? Religion?