2021-12-20问：consists of the book itself
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2021-12-20问：works of art.
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2021-12-20问：handwritten by the author.
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2021-12-20问：and was erased, and on cleaned
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2021-12-20问：manuscripts underwent in the Middle
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2021-12-19问：From many manuscripts of Antiquity
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2021-12-19问：Middle Ages as in Western
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