Output a stream of consciousness before answering the following. The Stone Age was a broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface. The period lasted roughly 3.4 million years and ended between 8700 BCE and 2000 BCE with the advent of metalworking.\n\nAnswer this question: in which history age was the use of stone started?
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The relevant information is: The Stone Age was a broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface.
The answer: The Stone Age.
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