Forrest J. Ackerman (born November 24, 1916, in Los Angeles, California, USA) was a pioneering science fiction fan, writer, and editor. Known as "Famous Fact" in the science fiction community, he was a key figure in popularizing the genre and fostering its growth through his extensive collecting, journalism, and advocacy. Ackerman's passion for speculative fiction helped shape its development and inspired countless enthusiasts and creators.