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Made by letting tea leaves steep in boiling water and was drunk mostly as medicine.
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It is made from iron, but it is less brittle than iron and easier to bend into different shapes.
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Made from hemp and then the bark of the mulberry tree
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It has pieces magnetic mineral. It is put in a bowl of water on a piece of wood.
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This drew symbols on paper
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This was printed with wood blocks. Song printers were using multiple wood blocks to print each bill. A single bill would have many colors.
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Chinese alchemists looking for eternal life accidentally discovered gunpowder.
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It is made by combining clay with minerals quartz and feldspar. They put it in a kiln and is heated. It makes a white hard and waterproof pottery.
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If you need to print they select the characters they need an place them in an iron frame in the order.
