Already around 50,000 years ago the first humans reached Australia, roughly at the same time as men of our kind settled in Europe. They were the descendants of people who had mainly followed the coasts from the Middle East, becoming skilled gatherers of protein-rich seafood in the process. It is now thought likely that they used boats to travel onwards to the new continent, although the sea-level in the Indonesian archipelago then would have been significantly lower than what it is today, opening up a world of land-bridges and calm seas. After reaching Australia by island-hopping through the Timor and Banda seas, they spread out very quickly. The then lush landscape suited them; it had huge lakes and rivers, with a number of now-extinct species that could be hunted for food, such as the giant wombat-like marsupial Zygomaturus (similar in size to a modern pygmy hippopotamus) and a 450-pound kangaroo, the Procoptodon.
Human colonization of the last new world began much later. An Asian people, probably in several small but closely related groups, arrived in America by crossing a land bridge to Alaska from North Asia some 17,000 years ago. They brought with them tools and techniques developed in a region between the Altai Mountains and the Amur valley in southern Siberia over the previous millennia. They then spread all over the Americas, first following the coasts and then, only slightly later, beginning to penetrate the interior. Some among the first Americans soon learnt how to build small boats. Others became experts at hunting mammoth and mastodon. The first finds of human habitation in Chile date back to 11,000 BC; parts of the US upper mid-west and possibly small areas of the Atlantic coast were populated roughly at the same time.
Homo sapiens was already a venturesome fellow at the end of the last Ice Age, it seems. Only Antarctica among the continents was still awaiting his arrival and establishment (as it would wait until the year 1895 of our own era). Yet the Upper Palaeolithic world was still a rather empty place. Calculations suggest that 20,000 humans lived in France in Neanderthal times; this becomes possibly 50,000 out of perhaps 10 million humans in the whole world twenty millennia ago. ‘A human desert swarming with game’ is one scholar’s description of it. They lived by hunting and gathering, and a lot of land was needed to support a family. Homo sapiens were exceptional hunter-gatherers when times were good; there is new evidence suggesting that the newcomers when first in Europe outbred the Neanderthals by a factor of ten to one. But even so, human population was small and the world very big.
It is not hard to see that such population figures mean very slow cultural change. Greatly accelerated though man’s progress in the Old Stone Age may be and much more versatile though he is becoming, he is still taking thousands of years to transmit his learning across the barriers of geography and social division. A man might, after all, live all his life without meeting anyone from another group or tribe, let alone another culture. The divisions which already existed between different groups of Homo sapiens open a historical era whose whole tendency was towards the cultural distinction, though in no way isolation, of one group from another, and this was to increase human diversity until reversed by technical and political forces in very recent times.
About the groups in which Upper Palaeolithic man lived there is still much unknown. What is clear is that they were both larger in size than in former times and also more settled. The earliest remains of buildings come from the hunters of the Upper Palaeolithic who inhabited what are now the Czech and Slovak republics and southern Russia. In about 10,000 BC in parts of France some clusters of shelters seem to have contained anything from 400 to 600 people, but judging by the archaeological record, this was unusual. Something like the tribe probably existed, therefore, though about its organization and hierarchies it is virtually impossible to speak. All that is clear is that there was a continuing sexual specialization in the Old Stone Age as hunting grew more elaborate and its skills more demanding, while settlements provided new possibilities of vegetable gathering by women.
Cloudy though its picture is, none the less, the earth at the end of the Old Stone Age is in important respects one we can recognize. There were still to be geological changes (the English Channel was only to make its latest appearance in about 7000 BC, for example), but we have lived in a period of comparative topographical stability which has preserved the major shapes of the world of about 9000 BC. That world was by then firmly the world of Homo sapiens. The descendants of the primates who came out of the trees had, by the acquisition of their tool-making skills, by using natural materials to make shelters and by domesticating fire, by hunting and exploiting other animals, long achieved an important measure of independence from some of nature’s rhythms. This transformation had brought them to a high enough level of social organization to undertake important co-operative works. Their needs had provoked economic differentiation between the sexes. Grappling with these and other material problems had led to the transmission of ideas by speech, to the invention of ritual practices and ideas which lie at the roots of religion, and, eventually, to a great art. It has even been argued that Upper Palaeolithic man had a lunar calendar. Man as he leaves prehistory is already a conceptualizing creature, equipped with intellect, with the power to objectify and abstract. It is very difficult not to believe that it is this new strength which explains the last and greatest stride in prehistory, the invention of agriculture.
3 The Possibility of Civilization
Human beings have existed for at least twenty times as long as the civilizations they have created. The waning of the last Ice Age allowed the long march to civilization to be completed and is the immediate prelude to History. Within 5,000–6,000 years a succession of momentous changes took place of which unquestionably the most important was an increase in food supply. Nothing so sharply accelerated human development or had such widespread results until the changes called industrialization which have gone on over the last three centuries.
One scholar summed up these changes which mark the end of prehistory as the ‘Neolithic revolution’. Here begins another little tangle of potentially misleading terminology, though the last we need consider in prehistory. Archaeologists follow the Palaeolithic era by the Mesolithic and that by the Neolithic (some add a fourth, the Chalcolithic, by which they mean a phase of society in which artefacts of stone and copper are in simultaneous use). The distinction between the first two is really of interest only to the specialist, but all these terms describe cultural facts; they identify sequences of artefacts which show growing resources and capacities. Only the term ‘Neolithic’ need concern us. It means, at its narrowest and most precise, a culture in which ground or polished stone tools replace chipped ones (though other criteria are sometimes added to this). This change-over may not seem so startling as to justify the excitement over the Neolithic which has been shown by some prehistorians, far less talk of a ‘Neolithic revolution’. In fact, though the phrase is still sometimes used, it is unsatisfactory because it has had to cover too many different ideas. None the less, it was an attempt to pin down an important and complex change which took place, with many local variations, and it is worthwhile to try to assess its general significance.
We can start by noting that even in the narrowest technological sense, the Neolithic phase of human development does not begin, flower or end everywhere at the same time. In one place it may last thousands of years longer than in another and its beginnings are separated from what went before, not by a clear line but by a mysterious zone of cultural change. Then, within it, not all societies possess the same range of skills and resources; some discover how to make pottery, as well as polished stone tools, others go on to domesticate animals and begin to gather or raise cereal crops. Slow evolution is the rule and not all societies had reached the same level by the time literate civilization appears. Nevertheless, Neolithic culture is the matrix from which civilization appears and provides the preconditions on which it rests, and they are by no means limited to the production of the highly finished stone tools which gave the phase its name.