Events
- Relations between the United Federation of Planets and the Klingon Empire degenerate, giving rise to some 70 years of unremitting hostility as the two powers become embroiled in a tense cold war. (Star Trek VI: The Undiscovered Country)
Notes
It may have been in this year that Starfleet adopted or first considered adopting its policy to secretly survey a culture before initiating first contact, as referenced in TNG: "First Contact".
| 2222 | 23rd century 2220s |
2224 |