Help:Timeline

The purpose of this page is to help to build a correct timeline of the Stargate episodes.

Main rule
Depending of the countries (and DVDs), some Stargate episodes have been switched when they aired. In Semantic Stargate Wiki, in order to put a timeline base, the order of Stargate episodes is determined by the first USA airing.

Stargate
The movie has been released in USA on October 28, 2004, stating the events in "Present day". The first Chulak events in occur on February 10, 1997 according to the mission report readen by Senator Robert Kinsey in. During these first events, Major General George Hammond says to Jack O'Neill that the Abydos mission (the one of the movie) occured over a year before. As a recton, the movie events occur on autumn 1995 in order to fit the Stargate SG-1 timeline.

Stargate SG-1
has been aired on July 27, 1997. Senator Robert Kinsey, in, reads a mission report stating that the first Chulak events occured on February 10, 1997, actually the first days of the shooting of the series. In the same episode we learn that events occured on "March of this year", and Ra was defeated "two years ago". In, Swift states that the last Apollo moon mission was 25 years ago. The last moon mission occured in 1972 plus 25 years equals 1997. The episode copyright dates should be the reference, but there are some exceptions. If there is a cliffhanger, Event of the last(s) season's episode(s) occure the next year (with the exception of the Season 1). About Season 5 to 8, it was supposed to the the last for each of them, so there is no cliffhanger. So, here is the basis for the timeline.


 * 1997: From (1.01) to  (2.01).
 * 1998: From (2.02) to  (2.21).
 * 1999: From (2.22) to  (3.21).
 * 2000: From (3.22) to  (4.21).
 * 2001: From (4.22) to  (5.22).
 * 2002: From (6.01) to  (6.22).
 * 2003: From (7.01) to  (7.22).
 * 2004: From (8.01) to  (8.20).
 * 2005: From (9.01) to  (9.18).
 * 2006: From (9.19) to  (10.20).
 * 2007: . The Ark of Truth events occur before SGA episode (3.20).
 * 2008 (and 2009 in the alternate timeline when it's showed "One year later"): . Continuum events occur after the SGA episode (5.01).

Stargate Atlantis
Stargate Atlantis events occur after, when Jack O'Neill is promoted Brigadier General in charge of Stargate Command, and Dr. Elizabeth Weir is in charge of the international scientific team working in the Antarctic Outpost in 2004. Therefore, the "Rising" events occur in 2004. The episode copyright dates on the ending credits should mark the timeline basis, yet, if there is a cliffhanger, events of the last(s) season episode(s) will occur the next year.


 * 2004: From (1.01) to  (1.18).
 * 2005: From (1.19) to  (2.19).
 * 2006: From (2.20) to  (3.19).
 * 2007: From (3.20) to  (4.19).
 * 2008: From (4.20) to  (5.20).

Stargate Universe
SGU events occur twelve years after (SGU: ), placing "Air" events in 2009. In, Rush says to Eli that Eli has "come a long way from that video game slacker (Rush) discovered a year ago." About four months have passed between and  (SGU: ). This means that the two seasons of SGU represent one full year. It should give the following timeline:


 * 2009: From (1.01) to  (2.08).
 * 2010: From (2.09, several months have passed since ) to  (2.20).
 * 2013: The time when the Destiny expedition should come out of stasis.