- Flint acquires a bottle of Saurian brandy from this year. (TOS: "Requiem for Methuselah")
- Jonathan Archer is named Federation ambassador to Andoria. (ENT: "In a Mirror, Darkly, Part II")
- Starfleet introduces a laser weapon which will not be superseded for at least one hundred years. (TAS: "The Slaver Weapon")
According to the Star Trek Encyclopedia, a Vulcan science mission attempts to seal a subspace rupture in the Hanoli system. The attempt fails and the rupture expands exponentially, obliterating the entire system, including the Vulcans. (3rd ed., p.183). However, the episode states that the rift was only discovered in the 23rd century.