- The film called The Alamo is released on Earth, starring actors John Wayne, Laurence Harvey, and Richard Widmark. (DS9: "Badda-Bing, Badda-Bang")
- On the Onlies' homeworld, the Life Prolongation Project goes disastrously wrong and begins killing off the planet's adult population. (TOS: "Miri")
- According to the Star Trek Encyclopedia (3rd ed., p. 561), Ted Williams stops playing for the Boston Red Sox.