Stone tool technology - How do archaeologists differentiate a blade from a flake? Blade or laminar core technology appeared with modern humans and spread into the regions they inhabited. As modern humans spread throughout Africa, Asia and Europe, they would have come into contact (either directly or in-directly) with Neanderthals. There are some instances of Neanderthal lithic technology changing to incorporate blade-like tools around the time of modern humans. Some researchers however believe t

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