The 24th World Science Fiction Convention (Worldcon), also known as Tricon, was held on 1–5 September 1966 at the Sheraton-Cleveland in Cleveland, Ohio, United States.
The three co-chairmen of that Worldcon each represented their city's fandom; they were Ben Jason of Cleveland, Howard DeVore of Detroit, and Lou Tabakow of Cincinnati.
[1] At the convention, Gene Roddenberry premiered both pilot episodes, "The Cage" and "Where No Man Has Gone Before", for his upcoming NBC TV series Star Trek.
Categories include novels and short fiction, artwork, dramatic presentations, and various professional and fandom activities.
[2][3] Other awards may be presented at Worldcon at the discretion of the individual convention committee.