Events
- Hikaru Sulu is promoted to captain, and given command of USS Excelsior, for a three-year mission charting gaseous anomalies in Beta Quadrant. (Star Trek VI: The Undiscovered Country)
- Three Klingon battlecruisers, commanded by Kor, Koloth, and Kang, are dispatched to apprehend the Albino. The raid was successful in breaking up most of the Albino's power base, but they fail to capture the Albino himself. In revenge, the Albino infects each of the three captain's firstborn sons with a genetic virus that will slowly kill the children. (DS9: "Blood Oath")
| 2289 | 23rd Century 2290s |
2291 |