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A person foundout that silk worms cacones make silk.
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The chinese made a compace like a big magnet
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The boats were already invented but the Chinese mad it a lot better
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this is made by combining clay with the minerals quartz and feldspar. this is used for decoration
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Accidentally discover gunpowder locking for secret to eternal life
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The Chinese saw the bridge to get across riders or body's of water and they made the bridge better in 618 ad
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the chinese wanted to make it so you can duplicate things and so they invented the printer with black ink
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these are bills that are called paper money and before that coins were the only currency
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Rocket technology was developed in China during the Song dynasty. Rockets were powered by a black powder made of saltpeter, charcoal, and sulfur.
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