NMLP P-002309 · True-first precedence · minted 2026-07-04

Dolphin Island

Arthur C. Clarke · Holt, Rinehart and Winston · 1963

US Holt edition, 1963; a UK Gollancz edition also appeared in 1963, so this is identified as the US first rather than an established world first.

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New Mexico Literacy Project — True-first precedence NMLP P-002309 for "Dolphin Island" by Arthur C. Clarke (https://newmexicoliteracyproject.org/id/point/p-002309, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).