2021-08-19问：so expensive material
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2021-08-19问：the spread of parchment.
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2021-08-19问：from a printed book, reproduction
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2021-08-19问：reproduced by hand, in contrast
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2021-08-19问：Europe, and in Ancient Russia
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2021-08-18问：handwritten books were made,
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2021-08-18问：One of the most skilled calligraphers
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