The three-age system is the categorization of history into time periods divisible by three; for example: the Stone Age, the Bronze Age, and the Iron Age; although it also refers to other tripartite divisions of historic time periods. In history, archaeology and physical anthropology, the three-age system is a methodological concept adopted during the 19th century by which artifacts and events of late prehistory and early history could be ordered into a recognizable chronology. It was initially developed by C. J. Thomsen, director of the Royal Museum of Nordic Antiquities, Copenhagen, as a means to classify the museum’s collections according to whether the artifacts were made of stone, bronze, or iron.... then Zeus the father created the third generation of mortals, the age of bronze ... They were terrible and strong, and the ghastly action of Ares was theirs, and violence. ... The weapons of these men were bronze, of bronze their houses, and they worked as bronzesmiths. There was not yet any black iron.For the nature of the world as a whole is altered by age. Everything must pass through successive phases. Nothing remains forever what it was. Everything is on the move. Everything is transformed by nature and forced into new paths ... The Earth passes through successive phases, so that it can no longer bear what it could, and it can now what it could not before.The earliest weapons were hands, nails and teeth. Next came stones and branches wrenched from trees, and fire and flame as soon as these were discovered. Then men learnt to use tough iron and copper. With copper they tilled the soil. With copper they whipped up the clashing waves of war, ... Then by slow degrees the iron sword came to the fore; the bronze sickle fell into disrepute; the ploughman began to cleave the earth with iron, ...It was Man's hand that made them serve as instruments (C'est la main des hommes qui les leur a données pour servir d'instrumens...)nothing is more important than to point out that hitherto we have not paid enough attention to what was found together.we still do not know enough about most of the antiquities either; ... only future archaeologists may be able to decide, but they will never be able to do so if they do not observe what things are found together and our collections are not brought to a greater degree of perfection.To put artifacts in their proper context I consider it most important to pay attention to the chronological sequence, and I believe that the old idea of first stone, then copper, and finally iron, appears to be ever more firmly established as far as Scandinavia is concerned.Perhaps it will be thought ... I have selected ... the passages most unfavorable to savages. ... In reality the very reverse in the case. ... Their real condition is even worse and more abject than that which I have endeavoured to depict.Man, in all ages and in all stages of his development, is a tool-making animal.Their presence is thus not always an evidence of a high antiquity, but of an early and barbarous state; ...Sir John Lubbock has proposed to call them the Archaeolithic, or Palaeolithic, and the Neolithic Periods respectively, terms which have met with almost general acceptance, and of which I shall avail myself in the course of this work.It has been generally assumed that a break occurred between the period during which ... the continent of Europe was inhabited by Palaeolithic Man and his Neolithic successor ... No physical cause, no adequate reasons have ever been assigned for such a hiatus in human existence ...Between the Palaeolithic and Neolithic, there is a wide and deep gap, a large hiatus.I was fortunate to discover the remains of that unknown time which separated the Magdalenian age from that of polished stone axes ... it was, at Mas-d'Azil in 1887 and 1888 when I made this discovery.With Epipaleolithic I mean the period during the early days that followed the age of the reindeer, the one that retained Paleolithic customs. This period has two stages in Scandinavia, that of Maglemose and that of Kunda. (Par époque épipaléolithique j'entends la période qui, pendant les premiers temps qui ont suivi l'âge du Renne, conserve les coutumes paléolithiques. Cette période présente deux étapes en Scandinavie, celle de Maglemose et de Kunda.)But in my opinion this term is not justified, as it would be if these phases presented a natural evolutionary development – a progressive transformation from Paleolithic to Neolithic. In reality, the final phase of the Capsian, the Tardenoisian, the Azilian and the northern Maglemose industries are the posthumous descendants of the Palaeolithic ...The continuity between geology, prehistoric archaeology and history is so direct that it is impossible to picture early man in this country without using the results of all these three sciences.In Kent's Cave the implements obtained from the lower stages were of a much ruder description than the various objects detected in the upper cave-earth ... And a very long time must have elapsed between the formation of the lower and upper Palaeolithic beds in that cave.Both for Bronze and Stone it was now evident that a few hundred years would not suffice. In fact, good grounds existed for dividing each of these periods into two, if not more.From the moment when the first skin was used as a covering, when the first rude spear was formed to assist in the chase, the first seed sown or shoot planted, a grand revolution was effected in nature, a revolution which in all the previous ages of the world's history had had no parallel, for a being had arisen who was no longer necessarily subject to change with the changing universe,—a being who was in some degree superior to nature, inasmuch as he knew how to control and regulate her action, and could keep himself in harmony with her, not by a change in body, but by an advance in mind....an advance in knowledge and civilization which amounted to a revolution in the then existing manners and customs of the world.There are quite a large number of archaeologists who justifiably consider the period of the Late Stone Age to be a neolithic revolution and an economic revolution at the same time. For that is the period when primitive agriculture developed and cattle breeding began.The assumption that any savage tribe today is primitive, in the sense that its culture faithfully reflects that of much more ancient men is gratuitous.But when the tools ... are considered ... in their totality, they may reveal much more. They disclose not only the level of technical skill ... but also their economy .... The archaeologists's ages correspond roughly to economic stages. Each new 'age' is ushered in by an economic revolution ....Archaeologists can define a period when it was apparently the sole economy, the sole organization of production ruling anywhere on the earth's surface.The Bronze Age of Britain may, therefore, be regarded as an aggregate of three stages: the first, that characterized by the flat or slightly flanged celts, and the knife-daggers ... the second, that characterized by the more heavy dagger-blades and the flanged celts and tanged spear-heads or daggers, ... and the third, by palstaves and socketed celts and the many forms of tools and weapons, ... It is in this third stage that the bronze sword and the true socketed spear-head first make their advent.In thus speaking of a bronze-using period I by no means wish to exclude the possible use of copper unalloyed with tin.A period of transition from the age of stone to that of bronze (periodo di transizione dall'età della pietra a quella del bronzo)Last century Herbert Spencer, Lewis H. Morgan and Tylor propounded divergent schemes ... they arranged these in a logical order .... They assumed that the logical order was a temporal one.... The competing systems of Morgan and Tylor remained equally unverified—and incompatible—theories.So many archaeological writers have used this model for so long that for many readers it has taken on a reality of its own. In spite of the theoretical agonizing of the last half-century, epochalism is still alive and well ... Even in parts of the world where the model is still in common use, it needs to be accepted that, for example, there never was actually such a thing as 'the Bronze Age.'But as a more rigorous sociological approach has begun to show that changes at the economic, political and ideological levels are not 'all of apiece' we have come to realise that time may be segmented in as many ways as convenient to the researcher concerned.As radiocarbon and other forms of absolute dating contributed more detailed and more reliable chronologies, the epochal model ceased to be necessary.Although modern archaeologists realize that this tripartite division of prehistoric society is far too simple to reflect the complexity of change and continuity, terms like ‘Bronze Age’ are still used as a very general way of focusing attention on particular times and places and thus facilitating archaeological discussion.... attempts by Eurocentric archaeologists to apply the model to African archaeology have produced little more than confusion, whereas in the Americas or Australasia it has been irrelevant, ...... Professor Wilson's presentation of prehistoric archaeology was a European product carried across the Atlantic to promote an American science compatible with its European model. The three-age system is the categorization of history into time periods divisible by three; for example: the Stone Age, the Bronze Age, and the Iron Age; although it also refers to other tripartite divisions of historic time periods. In history, archaeology and physical anthropology, the three-age system is a methodological concept adopted during the 19th century by which artifacts and events of late prehistory and early history could be ordered into a recognizable chronology. It was initially developed by C. J. Thomsen, director of the Royal Museum of Nordic Antiquities, Copenhagen, as a means to classify the museum’s collections according to whether the artifacts were made of stone, bronze, or iron. The system first appealed to British researchers working in the science of ethnology who adopted it to establish race sequences for Britain's past based on cranial types. Although the craniological ethnology that formed its first scholarly context holds no scientific value, the relative chronology of the Stone Age, the Bronze Age and the Iron Age is still in use in a general public context, and the three ages remain the underpinning of prehistoric chronology for Europe, the Mediterranean world and the Near East. The structure reflects the cultural and historical background of Mediterranean Europe and the Middle East and soon underwent further subdivisions, including the 1865 partitioning of the Stone Age into Paleolithic, Mesolithic and Neolithic periods by John Lubbock. It is, however, of little or no use for the establishment of chronological frameworks in sub-Saharan Africa, much of Asia, the Americas and some other areas and has little importance in contemporary archaeological or anthropological discussion for these regions. The concept of dividing pre-historical ages into systems based on metals extends far back in European history, probably originated by Lucretius in the first century BC. But the present archaeological system of the three main ages—stone, bronze and iron—originates with the Danish archaeologist Christian Jürgensen Thomsen (1788–1865), who placed the system on a more scientific basis by typological and chronological studies, at first, of tools and other artifacts present in the Museum of Northern Antiquities in Copenhagen (later the National Museum of Denmark). He later used artifacts and the excavation reports published or sent to him by Danish archaeologists who were doing controlled excavations. His position as curator of the museum gave him enough visibility to become highly influential on Danish archaeology. A well-known and well-liked figure, he explained his system in person to visitors at the museum, many of them professional archaeologists. In his poem, Works and Days, the ancient Greek poet Hesiod possibly between 750 and 650 BC, defined five successive Ages of Man: 1. Golden, 2. Silver, 3. Bronze, 4. Heroic and 5. Iron. Only the Bronze Age and the Iron Age are based on the use of metal: Hesiod knew from the traditional poetry, such as the Iliad, and the heirloom bronze artifacts that abounded in Greek society, that before the use of iron to make tools and weapons, bronze had been the preferred material and iron was not smelted at all. He did not continue the manufacturing metaphor, but mixed his metaphors, switching over to the market value of each metal. Iron was cheaper than bronze, so there must have been a golden and a silver age. He portrays a sequence of metallic ages, but it is a degradation rather than a progression. Each age has less of a moral value than the preceding. Of his own age he says: 'And I wish that I were not any part of the fifth generation of men, but had died before it came, or had been born afterward.' The moral metaphor of the ages of metals continued. Lucretius, however, replaced moral degradation with the concept of progress, which he conceived to be like the growth of an individual human being. The concept is evolutionary: The Romans believed that the species of animals, including humans, were spontaneously generated from the materials of the Earth, because of which the Latin word mater, 'mother', descends to English-speakers as matter and material. In Lucretius the Earth is a mother, Venus, to whom the poem is dedicated in the first few lines. She brought forth humankind by spontaneous generation. Having been given birth as a species, humans must grow to maturity by analogy with the individual. The different phases of their collective life are marked by the accumulation of customs to form material civilization: Lucretius envisioned a pre-technological human that was 'far tougher than the men of today ... They lived out their lives in the fashion of wild beasts roaming at large.' The next stage was the use of huts, fire, clothing, language and the family. City-states, kings and citadels followed them. Lucretius supposes that the initial smelting of metal occurred accidentally in forest fires. The use of copper followed the use of stones and branches and preceded the use of iron.