Sentences with phrase «manufactured by early humans»
The first person in each group was taught by archaeologists how to make artifacts called Oldowan tools, which include fairly simple stone flakes that were manufactured by early humans beginning about 2.5 million years ago.
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It contains tools made by Neandertals between 36,000 and 40,000 years ago as well as items manufactured by early modern humans between 33,000 and 36,000 years ago.
These predictions, he says, are essential to manufacturing in global chemical, cosmetic and personal care industries impacted by REACH, a European regulatory guideline that aims to improve the protection of human health and the environment through the better and earlier identification of the properties of chemical substances.