History
Neolithic and Upper Paleolithic people used millstone to grind grains, nuts, rhizomes and other vegetable food products for consumption. These implements are often called grinding stones. They used either saddlestones or rotary querns turned by hand. Such devices were also used to grind pigments and metal ores prior to smelting.
In India, grinding stones (Chakki) were used to grind grains and spices. These consist of a stationary stone cylinder upon which a smaller stone cylinder rotates. Smaller ones, for household use, were operated by two people. Larger ones, for community or commercial use, used livestock to rotate the upper cylinder.
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