Timeline (TOS)

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Part of the series on
Timelines of the Battlestar Galactica series

The timeline below chronicles the events depicted in the Original Series.

This timeline excludes the spin-off series Galactica 1980 and does not include any information from separate continuity works such as novels and comics. Nor does it include information from the inaccurate Encyclopedia Galactica reference released in 1979.

The timeline is given in yahrens, the Colonial term for "years." The date around which the timeline revolves is 7322, the only date given in the series, and one from the Colonial calendar. This was the yahren when the Cylons attacked Umbra on Caprica, as mentioned in "The Man with Nine Lives".

Ancient history

History of the Colonial and Cylon Conflict

The Seventh Millennium of Time

7349 and later

Main article: Timeline (1980)

The period between the Original Series and Galactica 1980, and the episodes and events of the Galactica 1980 happened in this period. Of course, as Battlestar Wiki treats 1980 as a divergent continuity, and thus a separate timeline page is available.


  1. This information is based on the ages of Richard Hatch and Dirk Benedict at the time of filming, which was 33.
  2. This information is based on Noah Hathaway's age at the time of filming, which was seven.