| Events
| Source
|
- Henry Hayes is elected and inaugurated as President of the United States.
| SG1:"Inauguration"
|
- President Henry Hayes, relieved General Hammand from commander of the SGC and appointed Elizabeth Weir.
| SG1:"Inauguration"
|
- Master Bra’tac learned that Anubis was going to defy the Protected Planets Treaty and attack the Earth.
| SG1:"Lost City (Part 1 of 2)"
|
- SG-1 travelled to P2X-439 and found a Repository of the Ancients. In-order to prevent Anubis from acquiring the knowledge within the Repository of the Ancients, SG1 destroyed the device. Before destroying the Repository of the Ancients however, O’Neill downloaded the devices knowledge into his brain. O’Neil used the knowledge to take SG-1 to an Ancient Outpost on Taonas, where they found a Zero Point Module (ZPM). SG-1 returned to Earth and used the ZPM to activate the Antarctic outpost.O’Neill used the Control chair, at the Antarctic outpost, to launch drones at Anubis’s invasion fleet that were above the Earth. Anubis’s fleet was destroyed.O’Neill entered the Antarctic outpost chamber and froze himself, to prevent the Ancients knowledge downloaded into his brain from killing him.
| SG1:"Lost City (Part 1 of 2)", "Lost City (Part 2 of 2)"
|
- Lieutenant Colonel Cameron Mitchell was injured, while piloting his F-302 against the forces of Anubis in Antarctica.
| SG1:"Avalon"
|
- .Alternate reality - the battle results in the general public learning of the existence of the Goa'uld. In America, large numbers of people riot in panic or protest, and in response the government imposes martial law on the country.
| SG1:"The Road Not Taken"
|
- Ba'al becomes the dominant System Lord.
| SG1:"New Order"
|
|
| SG1:"New Order"
|
|
| ATL:"Rising"
|
- The Wraith awaken from their hibernation cycle fifty years prematurely.
| ATL:"Rising"
|
|
| SG1:"Gemini"
|
- During a rescue mission to Atlantis, Prometheus is hijacked while answering a distress call. The crew, excluding Daniel Jackson, is transported to a damaged Al'kesh, by what appears to be a Kull Warrior. Daniel discovers that the hijacker is former Goa'uld host named Vala, who plans to sell the ship. Daniel and the crew are able to retake the ship, but Vala escapes.
| SG1:"Prometheus Unbound"
|
| Number
| Title
| Planet(s)
| Race(s)
| Production Company
| Airdate
|
| 712
| Evolution (Part 2 of 2)
| Earth, Tartarus
| Goa'uld, Jaffa, Kull, Tok'ra
| MGM Television Entertainment
| January 9
|
| 713
| Grace
| Earth
| Gas cloud, Unknown
| MGM Television Entertainment
| January 16
|
| 714
| Fallout
| Earth, Langara
| Langaran
| MGM Television Entertainment
| January 23
|
| 715
| Chimera
| Earth
| N/A
| MGM Television Entertainment
| January 30
|
| 716
| Death Knell
| Alpha Site (Second), Earth
| Jaffa, Tok'ra, Kull
| MGM Television Entertainment
| February 6
|
| 717
| Heroes (Part 1 of 2)
| Earth, P3X-666
| N/A
| MGM Television Entertainment
| February 13
|
| 718
| Heroes (Part 2 of 2)
| Earth, P3X-666
| Jaffa
| MGM Television Entertainment
| February 20
|
| 719
| Resurrection
| Earth
| Goa'uld
| MGM Television Entertainment
| February 27
|
| 720
| Inauguration
| Earth
| N/A
| MGM Television Entertainment
| March 5
|
| 721
| Lost City (Part 1 of 2)
| Chulak, Earth, P2X-439
| Goa'uld, Kull
| MGM Television Entertainment
| March 12
|
| 722
| Lost City (Part 2 of 2)
| Chulak, Earth, Proclarush
| Chulakian, Goa'uld, Kull
| MGM Television Entertainment
| March 19
|
| 801
| New Order (Part 1 of 2)
| Earth, Hala, Orilla
| Asgard, Goa'uld, Replicator
| MGM Television Entertainment
| July 9
|
| 802
| New Order (Part 2 of 2)
| Earth, Orilla
| Asgard, Goa'uld, Replicator
| MGM Television Entertainment
| July 9
|
| 803
| Lockdown
| Earth, KS7-535
| N/A
| MGM Television Entertainment
| July 23
|
| 804
| Zero Hour
| Earth, P2X-887
| Jaffa
| MGM Television Entertainment
| July 30
|
| 805
| Icon
| Earth, Tegalus
| Tegalan
| MGM Television Entertainment
| August 6
|
| 806
| Avatar
| Earth
| Kull
| MGM Television Entertainment
| August 13
|
| 807
| Affinity
| Earth
| N/A
| MGM Television Entertainment
| August 20
|
| 808
| Covenant
| Earth, P4X-650
| Asgard
| MGM Television Entertainment
| August 27
|
| 809
| Sacrifices
| Earth, Hak'tyl
| Hak'tyl Resistance, Jaffa
| MGM Television Entertainment
| September 10
|
| 810
| Endgame
| Earth, P3S-114, P4X-650
| Jaffa, Tok'ra
| MGM Television Entertainment
| September 10
|
| 811
| Gemini
| Earth, P4X-650
| Replicator
| MGM Television Entertainment
| December 14
|
| 812
| Prometheus Unbound
| Earth
| Oranian
| MGM Television Entertainment
| December 21
|
