Stone Age
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The Stone Age was an ancient time period when people made tools from stone. Wood, bones and other materials were also being used for tools, but stone (especially a kind of stone called flint) was used to cut things.
The period began with the first stone tools. Some scientists say this happened between 2 and 5 million years ago. The dates for this period were probably not the same everywhere, and are not always agreed, because these people did not write any records. Some groups of people were still in the stone age later than others.
The time after the stone age is the Bronze Age, named after the metal bronze. People probably began using bronze instead of just stone in the Middle East sometime between 3000 and 2000 BC.
The Stone Age is divided by archaeologists (people who study relics) into three sections: Paleolithic, Mesolithic and Neolithic.
