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Around 4000 BC and 3000 BC
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Stone Tools were made about 30,000 B.C.
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Was invented around 9,000 B.C.
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Was used first around 6,000 B.C.
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First introduced around 1,000 B.C.
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First introduced by a british engineer.
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Some time throughou the year , the electric guitar was created
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The internet was first launched after years of making.
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The first personal stereo, the sony walkman was made.
