title: Department of Temporal Investigations: Forgotten History (Star Trek)
author:  Christopher L. Bennett 
description: Christopher L. Bennett is a lifelong resident of Cincinnati, Ohio, with bachelors degrees in physics and history from the University of Cincinnati. He has written such critically acclaimed<i>Star Trek</i>novels as<i>ExMachina, The Buried Age,</i>the Titan novels<i>Orions Hounds</i>and<i>Over a Torrent Sea</i>, the two Department of Temporal Investigations novels<i>Watching the Clock</i>and<i>Forgotten History</i>, and the Enterprise novels<i>Rise of the Federation: A Choice of Futures</i>,<i>Tower of Babel</i>,<i>Uncertain Logic</i>, and<i>Live By the Code</i>, as well as shorter works including stories in the anniversary anthologies<i>Constellations, The Skys the Limit, Prophecy</i>and<i>Change</i>, and<i>Distant Shores</i>. Beyond Star Trek, he has penned the novels<i>X Men: Watchers on the Walls</i>and<i>Spider Man: Drowned in Thunder</i>. His original work includes the hard science fiction superhero novel<i>Only Superhuman</i>, as well as several novelettes in<i>Analog</i>and other science fiction magazines.
zlib_text: ## Acknowledgments
  
  
  Forgotten History is both a sequel and a prequel to my previous novel, Star
  Trek: Department of Temporal Investigations—Watching the Clock. Readers
  curious about the scientific basis for the principles of time travel depicted
  herein may learn more in the acknowledgments of that book or on its
  annotations page at <http://home.fuse.net/ChristopherLBennett/DTI_Annot.html>.
  This novel is also both sequel and prequel to my debut novel, Star Trek: Ex
  Machina, whose post–Star Trek: The Motion Picture continuity I also revisited
  in Star Trek: Mere Anarchy—The Darkness Drops Again.
  
  
  Agents Lucsly and Dulmur were introduced in the Star Trek: Deep Space Nine
  episode “Trials and Tribble-ations” (script by Ronald D. Moore and René
  Echevarria, story by Ira Steven Behr and Hans Beimler and Robert Hewitt
  Wolfe). The timing and circumstances of the DTI’s formation were informed by
  the two DTI-related stories in Star Trek: Strange New Worlds II: “Gods, Fate,
  and Fractals” by Willia