precious historical documents
definitions
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Highly valuable written or recorded materials from the past that provide significant insight into history, culture, or specific events.ja: 貴重な歴史的文書
examples
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The museum houses a collection of precious historical documents that reveal the secrets of the ancient empire.
その博物館には、古代帝国の秘密を解き明かす貴重な歴史的文書のコレクションが収蔵されています。