|Centuries:||23rd Century||24th Century||25th Century|
- 25: The Olympian Confederation, a group of twelve independent Human colonies, joins the United Federation of Planets.
- 31: Lucas Coleman graduates from Starfleet Basic Training.
- 10: The Breen Confederacy, Tholian Assembly, Tzenkethi Coalition, Holy Order of the Kinshaya, Gorn Hegemony, and Hydran Sovereignty announce the formation of the Typhon Pact, a mutual defense pact between these smaller powers against the Federation and the Klingon Empire. There are persistent rumors that the Klingons are planning to either join or over-run the Pact.
Elaithin Toryl enters Starfleet Academy.