- Spock decides to abandon his plan to join the Vulcan Science Academy in favor of joining Starfleet. (Star Trek) Sarek becomes estranged with his son for the next eighteen years. (TOS: "Journey to Babel")
- Charles Evans is born. (TOS: "Charlie X")
- Joanna McCoy, daughter of Leonard McCoy, is born. (TAS: "The Survivor")
- According to the Star Trek: Star Charts, pg. 53, Risa was admitted into the United Federation of Planets in this year.