Long before Europe saw its first book or compass, China had already invented paper, movable type printing, gunpowder, and directional tools. Known as the Four Great Inventions, these breakthroughs ...
I'm sharing a quick chemistry fact about gunpowder, a major Chinese invention made from sulfur, carbon, and potassium nitrate. But that's just one of China's "Four Great Inventions." If you already ...
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