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The Upper Paleolithic, starting roughly forty,000 years in the past, saw the introduction of pressure flaking, the place a wooden, bone, or antler punch could be used to form a stone very …

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The information of gunpowder was also transmitted from China by way of predominantly Islamic international locations, the place formulas for pure potassium nitrate had been developed. Pont du Gard in France, a Roman aqueductThe Roman Empire expanded from Italia across …