Page 72 - Berkshire Encyclopedia Of World History Vol I - Abraham to Coal
P. 72

tfw-12 berkshire encyclopedia of world history



                                               By providing a coherent, intelligible account of the past, [history] satisfies a
                                                   profound human yearning for knowledge about our roots. It requires no
                                                     justification other than that. • THEODORE S. HAMEROW (b. 1920)



            humans, increasing the probability that they were caused  continents and new environments are one expression of
            by humans.                                          that acceleration. However, new technologies and tech-
              Similar extinctions during recent centuries, such as the  niques also proliferated. Stone tools became more precise
            extinction of the large birds known as “moas” in New  and more varied, and many may have been hafted. Peo-
            Zealand, offer a modern example of what may have hap-  ple made more use of new materials such as bone,
            pened as humans with improved hunting techniques    amber, and vegetable fibers. From about twenty thousand
            and skills encountered large animals who had little expe-  to thirty thousand years ago, new and more sophisticated
            rience of humans and whose low reproduction rates   tools appeared, including bows and arrows and spear
            made them particularly vulnerable to extinction. The  throwers.
            loss of large-animal species in Australia and the Americas  Foragers in tundra (level or rolling treeless plain that
            shaped the later histories of these regions insofar as the  is characteristic of arctic and subarctic regions) regions
            lack of large animals meant that humans were unable to  used bone needles to make carefully tailored clothes
            exploit large animals as beasts of burden and sources of  from animal skins; sometimes they covered their clothing
            foodstuffs and fibers.                               with elaborate ornamentation made from animal teeth or
                                                                shells.The remains of prey species show that hunters, par-
            Fire-Stick Farming                                  ticularly in cold climates, became more specialized in
            A second example of the increasing environmental    their hunting techniques, suggesting increasingly sophis-
            impact of early foragers is associated with what the Aus-  ticated understanding of different environments. Cave
            tralian archaeologist Rhys Jones called “fire-stick farming.”  paintings and sculptures in wood or bone began to
            Fire-stick farming is not, strictly, a form of farming at all.  appear in regions as disparate as Africa, Australia, Mon-
            However, it is, like farming, a way of manipulating the  golia, and Europe.
            environment to increase the productivity of animal and
            plant species that humans find useful. Fire-stick farmers  Affluent Foragers
            regularly burn off the land to prevent the accumulation  Accelerating technological change accounts for one
            of dangerous amounts of fuel. Regular firing also clears  more development that foreshadowed the changes that
            undergrowth and deposits ash. In effect, it speeds up the  would eventually lead to the agrarian era. Most foraging
            decomposition of dead organisms, which encourages   technologies can be described as  “extensive”:  They
            the growth of new shoots that can attract grazing animals  allowed humans to occupy larger areas without increas-
            and the animals that prey on them.                  ing the size of individual communities. Occasionally,
              Humans systematically fired the land on all the conti-  though, foragers adopted more intensive techniques that
            nents they settled, and through time the practice proba-  allowed them to extract more resources from a given
            bly transformed local landscapes and altered the mix of  area and to create larger and more sedentary communi-
            local animal and plant species. In Australia, for example,  ties. Evidence for such changes is particularly common
            fire-stick farming through tens of thousands of years  from about twenty thousand to fifteen thousand years
            probably encouraged the spread of eucalyptus at the  ago and is best known from the corridor between
            expense of species that were less comfortable with fire,  Mesopotamia (the region of southwestern Asia between
            creating landscapes very different from those encountered  the Tigris and Euphrates rivers) and Sudan—the region
            by the first human immigrants.                       that links Africa and Eurasia. Anthropologists have long
                                                                been aware that foragers living in environments of par-
            Picking up the Pace                                 ticular abundance will sometimes become less nomadic
            From about fifty thousand years ago the rate of techno-  and spend longer periods at one or two main home
            logical change began to accelerate. Migrations to new  bases. They may also become more sedentary if they
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