Compléter Metal AgesVersion en ligne Text about Metal Ages par Susana López 1 iron divisions metal warriors changes unequally transport progress copper ships land plough jewellery strong 7000 sail cities traders wealth routes trade social Wheel bronze About years ago , human beigns began to make objects . The first metal they used was , but it was not very . Later , they used and to make tools , weapons and . There were three important inventions : - The , which greatly improved . - The , which meant than could be bigger because they used the force of the wind . - The , which made working the easier and faster . The use of metal objects was a sign of great , and caused many . The search of metals to make tools created new . Trade produced , and villages turned into . New professions , such as , craftspeople , priest and appeared . Wealth was divided , and were created .
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