Print..."stone age" of human technological history was coming to an end, and the age of metals was beginning. A further set of technological changes, beginning around 4000 B. C.E.,

Page 1 <img data-url='document/-stone-age-of-human-technological-history-was-coming-to-an-end-and.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: Print..."stone age" of human technological history was coming to an end, and the age of metals was beginning. A further set of technological changes, beginning around 4000 B. C.E.,' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader035.cupdf.com/reader035/viewer/2022071103/5fdcb334e99b5c73fc2f262b/html5/thumbnails/1.jpg' width='140' height='200' /> Page 2 <img data-url='document/-stone-age-of-human-technological-history-was-coming-to-an-end-and.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: Print..."stone age" of human technological history was coming to an end, and the age of metals was beginning. A further set of technological changes, beginning around 4000 B. C.E.,' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader035.cupdf.com/reader035/viewer/2022071103/5fdcb334e99b5c73fc2f262b/html5/thumbnails/2.jpg' width='140' height='200' /> Page 3 <img data-url='document/-stone-age-of-human-technological-history-was-coming-to-an-end-and.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: Print..."stone age" of human technological history was coming to an end, and the age of metals was beginning. A further set of technological changes, beginning around 4000 B. C.E.,' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader035.cupdf.com/reader035/viewer/2022071103/5fdcb334e99b5c73fc2f262b/html5/thumbnails/3.jpg' width='140' height='200' /> Page 4 <img data-url='document/-stone-age-of-human-technological-history-was-coming-to-an-end-and.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: Print..."stone age" of human technological history was coming to an end, and the age of metals was beginning. A further set of technological changes, beginning around 4000 B. C.E.,' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader035.cupdf.com/reader035/viewer/2022071103/5fdcb334e99b5c73fc2f262b/html5/thumbnails/4.jpg' width='140' height='200' />

Print..."stone age" of human technological history was coming to an end, and the age of metals was beginning. A further set of technological changes, beginning around 4000 B. C.E.,

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