Introduction The evolution of the earth is supposed to took place in 4.6 billion year ago. Stone Age artifacts include tools used by modern humans and by their predecessor species in the genus homo , and possibly by the earlier partly contemporaneous genera Australopithecus and paranthropus . bone tools were used during this period as well but are rarely preserved in the archaeological record . The Stone Age is further subdivided by the types of stone tools in use. after many dramatic changes in earth's structure and environment, it becomes supportive for life. From their first appearance to around 3000 BC humans used only stone tools for different purposes. this period is , therefore, known as the stone age, which has been divided into paleolithic (early or old stone ) age, Mesolithic(middle stone) age, and Neolithic (new stone) age. THE PALEOLITHIC PERIOD Paleolithic Pe...
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