Prepared-core technique: Difference between revisions

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===First evidence===
Although there had been different types of tools created prior to this technique, mostly that of handaxes and cleavers, this new technique was a great advancement for early man. Believed roughly to have been first used 200,000 years ago this technique involved a removal of flakes from a piece of stone to achieve desired shape and thickness. The use of this technique is believed to be a significant change in culture and shows an increasing growth of cognitive ability, as one that is using this method must be able to imagine the end product and maintain that image while conditioning the stone to the desired shape and end result tool.
 
===Geographical spread===
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==Methods for reducing cores==