Eugenics Wars

Below is an abridged timeline of events established in the group of television shows and feature films set in the Star Trek universe. Many dates are estimates as the various shows and films are not consistent in their use of dates. More exhaustive timelines are available in both Star Trek reference works and on various fan websites.

This table shows each TV series and movie, its year of release or broadcast, the year it was set in according to the prevailing Okuda chronology (see below) and the stardate range for that year. The designation Enterprise-based series are the series that featured the various incarnations of the starship USS Enterprise. In universe timeline chronological order Star Trek Enterprise (ENT), Star Trek: The Original Series (TOS), Star Trek: The Animated Series (TAS), Star Trek: The Next Generation (TNG) and all 13 of the Star Trek feature films including the three newest J.J. Abrams alternate reality films, or "Kelvin Timeline" based on the original series.

This timeline is based on the Star Trek Chronology model described below, supplemented by data from startrek.com.

Note: Many of these dates are rounded-off approximations, as the dialog from which they are derived often includes qualifiers such as "over," "more than," or "less than."

There have been several efforts to develop a chronology for the events depicted by the Star Trek television series and its spin-offs. This matter has been complicated by the continued additions to the Star Trek canon, and the scarcity of Gregorian calendar dates given in the show (stardates instead being used).

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