- 200 crewmembers of the USS Farragut are killed at Tycho IV by a dikironium cloud creature. The Farragut first officer commends Lieutenant James T. Kirk for his actions at Tycho IV. (TOS: "Obsession")
- The Shakespearian troupe Karidian Company of Players, sponsored by the Galactic Cultural Exchange Project, begins its tour of official installations. (TOS: "The Conscience of the King")
- Montgomery Scott and Keenser are stationed at the Federation outpost at Delta Vega in the Vulcan system late in this year, six months prior to their encounter with James T. Kirk and Spock on stardate 2258.42. It is believed the transfer was punishment for losing Admiral Archer's prized pet beagle in a transwarp beaming experiment.