#onthisday
L. Sprague de Camp, American historian and author died on this day in 2000.
As an author of science fiction, fantasy and non-fiction literature he wrote over 100 books, including biographies of other fantasy authors during a career spanning 60 years,
A major figure in science fiction in the 1930s and 1940s.
During World War II, de Camp served as a researcher at the Philadelphia Naval Yard alongside his fellow-writers Isaac Asimov and Robert A. Heinlein.
L. Sprague de Camp noted he rarely used pen-names, stating, "partly because my own true name sounds more like a pseudonym than most pseudonyms do."
"Extraterrestrial", a coinage from "extra" + "terrestrial", meaning from beyond earth, attested as an adjective in 1868, according to the Oxford English Dictionary. L. Sprague de Camp is credited with its first usage as a noun with the meaning of "alien life" and with coining the abbreviation "E.T." in the first part of his two-part article "Design for Life", published in the May 1939 issue of Astounding Science Fiction.
Best known works include the Harold Shea stories co-written with Fletcher Pratt and a particular favourite of mine, Lest Darkness Fall. A time travel novel similar to Mark Twain's A Connecticut Yankee in King Arthur's Court but where the method of time travel was rationalised, and the hero's technical expertise was constrained by the limitations of the age.
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