Timeline
This is a list of historical dates that were mentioned on screen (currently from live action only) and that can be ordered at least roughly chronologically. Not included are events that happen "here and now" in the episodes themselves and which can be found in the episode guides.
See Also
21st Century Earth History - thoughts about early interplanetary travel, the Eugenics Wars and the Third World War
Other History Inconsistencies - about the TOS movie timeline, the UESPA, first contact with the Borg, Klingons in the Federation, etc.
The Continuities of Star Trek - from a single timeline to a multiverse(?), and how to deal with that
Credits
Some of the data is extracted from the very detailed and now defunct Sector 001 database, the rest is supplemented from newer DS9, Voyager and Enterprise episodes, the Star Trek Encyclopedia III and the Star Trek Fact Files.
