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In page Arras:
"Archaeologists found evidence of prehistoric human settlements in the Scarpe basin. The archaeological sites of Mont-Saint-Vaast in Arras and Biache-Saint-Vaast were Stone Age settlements of the Mousterian culture. They were evidenced by the finds of stone tools. These tools show signs of the Levallois technique, a name given by archaeologists to a distinctive type of stone knapping, developed by forerunners to modern humans during the Paleolithic period 170,000 years ago.
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