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This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

National Library: The Bibliothèque nationale de France in Paris, the primary repository for the nation's historical and literary heritage.
Registry: A specialized file or database (French: fichier) used by librarians to cross-reference academic publications with the specific documents they analyze.
Microfilm: A photographic reproduction of documents at a greatly reduced scale, used here to provide scholars access to rare manuscripts without risking damage to the originals.