Early man stone age

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Science Source - Homo Erectus Using Fire Prehistoric People, Stone Age People, Homo Erectus, Homo Habilis, Prehistoric Man, Prehistoric World, Human Evolution, Early Humans, Stone Age

- SS2783621 Captioned: "When the woman wants to grind any corn, she kneels down, and, taking i both hands the convex stone, she rubs it up and down in the hollow of the lower stone with a motion similar to that of a baker pressing down his dough and rolling it in front of him." Quern-stones are stone tools for hand-grinding a wide variety of materials. They are used in pairs. The lower, stationary, stone is called a quern, while the upper mobile stone is called a handstone. They were first…

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