2022-11-15问：Since the era of Charlemagne
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2022-11-15问：manuscripts held onto
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2022-11-15问：only a few survived.
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2022-11-15问：Testaru. Best known
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2022-11-15问：handwritten synonym
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2022-11-15问：manuscripts significantly
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2022-11-15问：Europe, and in Ancient Russia
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