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2557

From Halopedia, the Halo wiki

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Real-world chronology
Pre-2000
1997 • 1998 • 1999
2000s
2000 • 2001 • 2002 • 2003 • 2004 • 2005 • 2006 • 2007 • 2008 • 2009
2010s
2010 • 2011 • 2012 • 2013 • 2014 • 2015 • 2016 • 2017 • 2018 • 2019
>2020s
2020 • 2021 • 2022 • 2023 • 2024 • 2025 • 2026

January

February

February 2

February 21

March

March 3

  • An accident involving experimental weaponry aboard Argent Moon causes a gaseous toxic substance to spread throughout the ship via its air systems, killing nearly all aboard. Those closer to the accident are killed instantly and, depending on distance from the accident, the rest of the vessel's personnel begin suffering symptoms from the chemical minutes or hours later.[5]

March 17

  • All Argent Moon crew is killed by the biological agent, with only the shipboard AI, Rooker, still active. As a result, ONI loses contact with Argent Moon and Rooker sends a message that warns any ONI personnel who board the station of the situation, then puts the ship on a course that keeps it away from all inhabited systems and jettisons what remains he can into open space.[5]

May-June

May 6 to June 1

June

June 8

June 21

July

July 2

July 21

July 21-July 23

  • John-117 and Cortana engage Covenant forces on Requiem while attempting to find a way back to UNSC-controlled space. Meanwhile, UNSC Infinity is approaching Requiem, oblivious of the gravity well which pulled the Dawn and many Covenant ships inside. While attempting to clear the communications interference preventing them from contacting Infinity, John-117 and Cortana are attacked by mechanical Promethean forces. Activating a supposed broadcast relay in Requiem's core, John-117 instead accidentally releases the Didact from imprisonment. Bent on preventing human ascendance, the Didact leaves immediately and joins forces with the Covenant.[8]
  • UNSC Infinity crashes on Requiem. The Didact makes for the crash-site, followed by the Master Chief, who reunites with the UNSC for the first time in years and assists in the defense of the stranded Infinity, eventually driving back the Didact and the Covenant forces. Afterwards, Captain Andrew Del Rio has a difference of opinion with the Master Chief on whether or not they should leave Requiem, or stay and deal with the Didact.[9] In the end, Del Rio orders the Chief to join Gypsy Company and destroy Requiem's gravity well generator so that the Infinity can depart.[10]
  • During the mission, John-117 encounters a vision of the Librarian, who warns him of the Didact's plan: to use a machine known as the Composer to neutralize humanity once and for all. To fight the Didact, the Librarian provides the Spartan with additional genetic enhancements, including an immunity to the Composer. Once the gravity well is destroyed, Captain Del Rio orders the Infinity to leave Requiem immediately. Disobeying orders, the Master Chief stays behind in an effort to stop the Didact.[10]
  • After the Infinity returns to Earth, FLEETCOM immediately relieves Captain Del Rio of his duties as captain of the ship due to his actions on Requiem; Thomas Lasky is promoted in his place.[11]
  • Between July 22 and July 24, the Didact repeatedly contacts Catalog and requests authorization to take control of the ecumene; Catalog rejects his requests.[2]

July 24

  • Raid on Ivanoff Station: John-117 pursues the Didact as he travels to Ivanoff Station to acquire the Composer. The Didact is eventually successful and uses the Composer to digitize the occupants of Ivanoff, save for John-117 who is saved by the Librarian's enhancements.[12][13]
  • SPARTAN-II Black Team, assigned as security for a science camp on Installation 03, loses contact with Ivanoff Station immediately after the attack.[14]

July 25

  • New Phoenix Incident: As the Didact plans to attack Earth and wipe out humanity using the Composer, John-117 follows him in close pursuit. When the Didact reaches Earth, the Infinity and the UNSC Home Fleet engage his ship immediately. Armed with a nuclear device, John-117 makes his way into the ship and confronts the Didact, but not before the Forerunner uses the Composer to digitize the population of New Phoenix, URNA. With the aid of a rampant Cortana, the Master Chief is eventually able to defeat the Didact and destroy his ship. Cortana sacrifices herself to save John-117 from the explosion and the Spartan is recovered from the debris field soon after.[11]
  • Unknown to everyone, Cortana survives with the debris of the Mantle's Approach and is pulled through slipspace to the Forerunner installation designated Genesis. There, she gains access to the Domain which "cures" her rampancy. Cortana meets with the Warden Eternal and both begin to plan to take the Mantle of Responsibility for the AIs.[15]
  • The Didact falls into the Composer's slipspace rupture and is thrown to the surface of Installation 03 along with other detritus from Mantle's Approach. On Gamma Halo, the Didact awakens and kills Team Black and the nearby UNSC science team.[14]
  • A group of SPARTAN-IV recruits is deployed offworld at the time of the attack.[16]
  • John-117 is debriefed by the UNSC Security Council about the Didact and the loss of Cortana. The Council decides to tell the public that the attack was carried out by the Covenant remnants and it was stopped by Master Chief.[13]

July 26

  • After arriving at Gamma Halo, Blue Team find the bodies of the deceased science team and Team Black. After a short firefight with Promethean Knights, Blue Team discovers the former location of the Composer. Upon entering the structure, the Spartans discover the Composer's Abyss, at the end of which they find the slipspace portal leading to the Composer's Forge.[13]
  • Blue Team enter the portal to the Composer's Forge where they discover six Composers. The Didact confronts the Spartans along with an army of his Promethean minions.[14]
  • During the ensuing battle, Static Carillon transports Installation 03 above the Composer's Forge as part of an agreement between himself and the Didact. The Didact takes one of the Composers and departs for Gamma Halo, planning to use the ring to wipe out humanity. However, the monitor feels betrayed by the Didact bringing his Promethean forces to the Composer's Forge and helps Blue Team return to the portal in pursuit of the Didact, intending to close the portal behind them.[14]
  • As Blue Team returns to the surface of Gamma Halo, they are attacked by the Didact. Before the Forerunner can kill the Spartans, 859 Static Carillon appears, disables the Didact and teleports him into the Halo's control room. John-117 follows the Didact into the control center where he enables Static Carillon to eject the segment of the ring housing the control room. The detached section of the Halo plunges into the Composer's Forge; the Didact is consumed by the ensuing blast while the Master Chief is safely teleported aboard Blue Team's Longsword in orbit.[17]

July 24-July 26

  • Battle of Installation 03: Covenant devotees assault Installation 03 and take control of the site known as the Altar in order to use the Conduit to enable a massive Promethean invasion of the Halo through slipspace portals. However, a Spartan Headhunter assaults the Altar and obtains the Conduit.[18]
  • Battle of New Phoenix: Shortly after the composition of New Phoenix, the Covenant open portals in an ONI base in the city through a Forerunner artifact stored there with the intent of launching an all-out invasion of Earth. The UNSC is able to stop the attack using the Conduit.[19]
  • 859 Static Carillon takes Installation 03 to an unknown location for repairs.[17]

July 27

  • Blue Team returns to Earth; John-117 is debriefed by Admiral Hood. While Hood suggests that he and Blue Team stand down and have some rest, the Master Chief instead leads the team on a new mission.[17]

September

September 12

  • Rooker begins to suffer from rampancy due to being six months past his "expiration date". Feeling he can no longer manage the Argent Moon, he initiates his own destruction.[5]

November

November 15

  • The holiday known as "Yanumas" is celebrated for the first time.[20]

December

December 5

Unknown

  • An ONI analyst sends a warning memorandum to UNSC High Command regarding growing threats of Kig-Yar pirates near key trade routes. The UNSC disregards ONI's repeated requests for official action against the Kig-Yar.[22]

Unknown date

Sources

  1. ^ Halo: Fractures, Into the Fire, page 289
  2. ^ a b c d Halo Waypoint: Catalog Interaction - Page 14
  3. ^ Halo 4, The Commissioning
  4. ^ Halo 4 Limited Edition — Infinity Briefing Packet
  5. ^ a b c Halo 5: Guardians, campaign level, Blue Team - Mission Intel
  6. ^ Halo Waypoint: Halo 4 Terminal: Jul 'Mdama
  7. ^ Halo 4, campaign level Dawn
  8. ^ Halo 4, campaign level Forerunner
  9. ^ Halo 4, campaign level Infinity
  10. ^ a b Halo 4, campaign level Reclaimer
  11. ^ a b Halo 4, campaign level Midnight
  12. ^ Halo 4, campaign level Composer
  13. ^ a b c d Halo: Escalation - Issue #8
  14. ^ a b c d e Halo: Escalation - Issue #9
  15. ^ Halo 5: Guardians, campaign level Reunion
  16. ^ a b Halo 4: The Essential Visual Guide
  17. ^ a b c Halo: Escalation - Issue #10
  18. ^ Halo: Spartan Strike, Operation C: Valiant Hammer
  19. ^ Halo: Spartan Strike, Operation D: Adamantine Shield
  20. ^ Section 3 Old Chat Record Page 99
  21. ^ Halo Waypoint: I wish 343i would of done more with Gek Lhar
  22. ^ Halo: Escalation, Issue #12
  23. ^ Halo 5: Guardians, CYPHER-class Mjolnir (Body description)
  24. ^ The Sprint: Season 3 - Episode 5
  25. ^ Halo Waypoint: Scorpion
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