NMLP P-036099 · True-first precedence · minted 2026-07-09
The Castle of Otranto, A Story
Horace Walpole · Tho. Lownds (London) · 1764
The book's actual date of issue (December 1764) predates its own 1765 title-page date, a common London publishing-trade practice for year-end books; bibliographies conventionally cite this as the '1764 first edition' despite the 1765 imprint.
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New Mexico Literacy Project — True-first precedence NMLP P-036099 for "The Castle of Otranto, A Story" by Horace Walpole (https://newmexicoliteracyproject.org/id/point/p-036099, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).