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What they might have used such a pigment for is unknown.
The cultures of prehistoric humans are known mostly through the excavation of stone tools and other relatively imperishable artifacts.
The early tool making traditions are often referred to as being paleolithic (literally "Old Stone" Age).
The Mousterian Tradition was marked by the progressive reduction in the use of large core tools, such as hand axes, as specialized flake tools became more common.
Flakes of more or less standardized shapes and sizes were often made with the .
By the Middle Paleolithic, not all sites had the same tool kits.