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tea was used for spiritual and medical
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a porcelain is a very nice Chinese pottery used for decoration or to hold stuff with value
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steel is a material that was stronger then the material they used
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they were the first to use the club as a weapon in battle
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they use paddle boats they figure out that if you paddle you trip will be faster
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gunpowder was made on accident and was used to make fire works
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they used fire works for celebrations
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this system was use to help them know when earth quakes were going to occur
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was the first type of money used made out of paper
