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This was the longest of the three periods. The hominids learnt to carve stone. These tools are called bifaces.
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They perfected tool-maked and used smaller stone chips for carving. They began using other materials, like bone, and created new utenils: knives, arrowheads, harpoons for fishing, and sewing needles
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The first spiritual and artistic expressions appeared. They made stone figures representing Venus, the goddes of fertility.
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Copper tools and weapons are very fragile.
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Bronze, and alloy of copper and tin, was more resistant. They used it to make farming tools and sophisticated weapons.
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Iron was more abundant and more resistant tan the previous metals.