tool: References & Edit History

Article Contributors

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  • Rasoul Shiri

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Invalidated site: University of Toronto - Department of Mechanical and Industrial Engineering - Measuring Tools and Processes (PDF). Dec 27, 2024
Add new Web site: University of Toronto - Department of Mechanical and Industrial Engineering - Measuring Tools and Processes (PDF). Dec 26, 2024
Add new Web site: Ancient Origins - Blades of Destiny: The Ancient Tools And Weapons That Crafted History. Apr 10, 2023
Add new Web site: Live Science - Human Evolution: The Origin of Tool Use. Feb 27, 2023
Text describing the start of Neolithic changed to "between 10,000 and 8,000 BCE." Jun 22, 2016
Time difference between oldest tools and oldest specimen of the genus Homo changed to "almost 1 million years." Jun 22, 2016
Emergence of Neanderthals (Homo neanderthalensis) changed to "between 300,000 and 200,000" years ago; emergence of Cro-Magnons (H. sapiens) changed to "between 45,000 and 30,000" years ago. Nov 16, 2015
Cross-references added. Nov 16, 2015
Cross-references added. May 22, 2015
Text added describing the significance of 3.3-million-year-old tools found at the Lomekwi 3 site in Kenya. May 22, 2015
Media added. Aug 14, 2008
Article added to new online database. Jul 20, 1998
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