| http://www.w3.org/ns/prov#value | - Evidence shows these early hominids intentionally selected raw materials with good flaking qualities and chose appropriate sized stones for their needs to produce sharp-edged tools for cutting.[26] The earliest Paleolithic stone tool industry, the Olduwan, began around 2.6 million years ago.[27] It contained tools such as choppers, burins and awls.
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