NMLP P-018532 · True-first precedence · minted 2026-07-04

Ringworld

Larry Niven · Ballantine Books (New York) · 1970

The Ballantine mass-market PAPERBACK is the true first edition — there was no US hardcover first. The UK Gollancz hardcover (1972) and the later Holt/SFBC hardcover are later. Hugo and Nebula winner.

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New Mexico Literacy Project — True-first precedence NMLP P-018532 for "Ringworld" by Larry Niven (https://newmexicoliteracyproject.org/id/point/p-018532, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).