The Isolinguals

"The Isolinguals" is a science fiction story, addressing the concept of ancestral memory, by American writer L. Sprague de Camp. It was his first published story. It was first published in the magazine Astounding Stories for September, 1937, and first appeared in book form in the anthology First Flight: Maiden Voyages in Space and Time (Lancer Books, Aug. 1963; reprinted Nov. 1966 and Nov. 1969. It later appeared in the anthologies First Voyages, Tales in Time, and Wondrous Beginnings, as well as the de Camp collection Years in the Making: the Time-Travel Stories of L. Sprague de Camp.