| 2219 2220 2221 2222 2223 2224 2225 |
| 2190s 2200s 2210s 2220s 2230s 2240s 2250s |
| 22nd century - 23rd century - 24th century |
Events
- The USS Valiant (NX-1288), the prototype Valiant-class heavy cruiser is launched. (Trekmania)
- Dilithium is discovered to be a naturally-occurring element on the colony planet Deneva. (Star Fleet Starship Recognition Manual: Report: Constitution Heavy Cruisers)
Births
- Montgomery Scott is born. (TNG: "Relics")