- Starfleet begins research on force fields. (ENT: "Vox Sola")
- The Mars verteron array is used to deflect Comet Burke. (ENT: "Terra Prime")
- Marvin Hildebrandt dies. (TNG-R: "The Neutral Zone", okudagram)
- According to Star Trek: Star Charts, by Geoffrey Mandel, on page 45, the ECS North Star was lost in 2147.