This is a list of historical dates that were mentioned on screen and could be sorted at least roughly chronologically. Not included are events that happened "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.



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.


Proceed to Until 1966

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