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Made from the hemp and bark of the mullberry tree in ancient times this was very advanced at the time and noone else knew about it.
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Steel is made from iron and is less brittle than iron. The chinese was the first to make cast iron. Steel is way more strong and usefull than iron.
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This new clock was made to be better than the earlier timekeeping machines such as hourglasses.
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This was made to go along with board games to make the games more intriging with no real money on the line.
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Alchemists tryied to find a substance to allow people to live forever. And they seacherd for a way to make gold out of cheaper metals. They messed up and created gunpowder.
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The chinese invented the deck of card for many reasons including board games.
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The flamethrower was the first weapon that used gunpowder. This was made from gunpowder and oil. They used this to speard a wave of oil.
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Although porcelian was already being made, in the 10th century the chinese started to mass produce this and make money fro selling.
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These were made the same way bullets were made for rifles this was a pretty big acheivement
