2022-08-16问：Century to a kind of destruction
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2022-08-16问：consists of the book itself
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2022-08-15问：manuscripts held onto
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2022-08-15问：Preserved about 300 thousand.
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2022-08-15问：secular brotherhoods of scribes.
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2022-08-14问：so expensive material
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2022-08-14问：which is carried out by the printing
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