klingon_story1-1  Exercise 1: A Three-Entry Timeline
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  1967   The language is mentioned ("Klingonee", in "The Trouble with Tribbles")
         but not heard. Klingons speak English. Shaped by: television writers.

  1979   Star Trek: The Motion Picture. A sound and about a dozen words are
         heard, with subtitles. Shaped by: James Doohan and Jon Povill;
         spoken by Mark Lenard.

  1984   Star Trek III. A structured language is built to order.
         Shaped by: Marc Okrand (Chapter 2).