The Stone Age is contemporaneous with the evolution of the genus Homo, with the possible exception of the early Stone Age, when species prior to Homo may have manufactured tools. According to the age and location of the current

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Beginning of the Stone Age
The oldest indirect evidence found of stone tool use is fossilised animal bones with tool marks; these are 3.4 million years old and were found in the Lower Awash Valley in Ethiopia. Archaeological discoveries in Kenya in

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In 1859 Jens Jacob Worsaae first proposed a division of the Stone Age into older and younger parts based on his work with Danish kitchen middensthat began in 1851. In the subsequent decades this simple distinction developed into the archaeological periods of

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The image of the cavemanis commonly associated with the Stone Age. For example, a 2003 documentary series showing the evolution of

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• Homo
• Ice Age
• List of Stone Age art
• Megalith

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• Scarre, Christopher (ed.) (1988). Past Worlds: The Times Atlas of Archaeology. London: Times Books. ISBN 978-0-7230-0306-9.CS1 maint: extra text: authors list (link)

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Tools
Stone tools were made from a variety of stones. For example, flint and chert were shaped (or chipped) for use as cutting tools and

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