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{{Era|HCW|Post}}
{{Status|Canon}}
{{New Content|[[Halo: Shadow of Intent]]}}
{{Infobox/Timeline/CE
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{{Timeline|previous=2552|next=2554}}
|caption=[[Thel 'Vadam|Arbiter Thel 'Vadam]] and [[Terrence Hood|Fleet Admiral Hood]] shake hands in the [[Voi Memorial]] ceremony
'''2553''' was the first year that saw relative peace for [[human]]ity and the some of the disparate member species of the collapsed [[Covenant]] following twenty-eight years of [[Human-Covenant War|interstellar war]].
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'''2553''' was a year in the 2550s in the 26th century. It was the first year that saw relative peace for [[human]]ity as the [[Covenant]] ceased to exist following its collapse during the [[Great Schism]] and its [[Battle of the Citadel|defeat]] at the end of the [[Human-Covenant War]].<ref>[https://youtu.be/opWf5Sug2-Y?t=8m8s ''Halo Wars 2 GAMEPLAY - E3 2016 Interview (Interview with Kevin Grace)''] - ''"The Covenant are dead"''</ref> The end of the war was formalized with a ceremony in March 2553 with a prior [[Treaty of 2552|treaty]] agreed upon between the [[Unified Earth Government]] and the [[Swords of Sanghelios]] in February 2553. Despite the end of large-scale hostilities and the absence of humanity being threatened with extinction, new factions sprung up in the power vacuum left behind by the ancient empire and new battles followed. 2553 was a year that saw the [[United Nations Space Command]] make major advances in terms of its technological prowess and military capability, despite a lesser reach over the galaxy incurred by the loss of so many colonies and assets during the decades of war. Ex-Covenant societies were faced with the challenge of redefining their purpose in a galaxy that no longer provided them with the rigid structure the hegemony had. Some sought revenge on humans and some on others from the Covenant. Some sought to be left alone and others made grabs for power. And some, such as [[Thel 'Vadam]]'s Swords of Sanghelios, made in-roads with their former enemies for the mutual benefit of all parties.


==Events==
==Events==
===January===
===January===
*'''Unknown date''':
'''January 1'''
**[[Jun-A266]] visits [[Sarah Palmer]] aboard [[Lockhart medical station|''Lockhart'' medical station]] to recruit her into the nascent [[SPARTAN-IV program]].<ref>'''[[Halo: Initiation]]''', ''[[Halo: Initiation Issue 1|Issue #1]]''</ref>
After days of no indications that they were soon to be rescued following the destruction of [[Glyke]] and the [[UNSC Vacuna]], [[Gray Team]] enters [[cryostasis]].<ref>'''[[Halo: Envoy]]''', ''Chapter 12''</ref>
**A [[New Colonial Alliance]] strike force led by [[Ilsa Zane]] [[Raid on UNSC Infinity|infiltrates]] the {{UNSCship|Infinity}} and briefly commandeers the new UNSC [[flagship]] before the attack is driven back by the newly-created SPARTAN-IVs aboard the vessel.<ref name="hi3">'''Halo: Initiation''', ''[[Halo: Initiation Issue 3|Issue #3]]''</ref>
[[File:HI Ilsa and rebels.png|thumb|250px|'''January 2553''': Ilsa Zane announces her intention to steal the ''Infinity''.]]
*'''January 7''': The first class of the [[SPARTAN-IV program]], consisting of 145 volunteers, is initiated.<ref>[https://www.halowaypoint.com/en-us/universe/factions/spartans '''Halo Waypoint''' - ''Spartans'']</ref>
'''Before January 7'''
*'''January 8''': The [[Unified Earth Government]] formally regains its power back from the [[United Nations Space Command]].<ref name="CatalogUEG">[https://forums.halowaypoint.com/yaf_postsm2969317_Catalog-Interaction.aspx#post2969317 '''Halo Waypoint''': ''Catalog Interaction (Query Answer: Human records indicate transition to noncombatant administrative control <nowiki>[ref: UEG] [January 8, 2553]. No notable adjustment in military [bureaucratic tactical]</nowiki> behavior and scope of authority.)'']</ref> The newly-elected [[President of the Unified Earth Government|president]], Dr. [[Ruth Charet]] gives her inaugural address.<ref name>[http://halo.xbox.com/en-us/news/headline/the-halo-bulletin-101211-exclusive-book-excerpt-glasslands/280887 '''Halo Waypoint''' - ''Halo: Glasslands'' excerpt, Chapter 2]</ref><ref>[https://twitter.com/bsangel/status/685549382628868096 '''Jessica Shea Twitter''' ''Today in Halo - 1/8/2553'']</ref>
*At some point before January 7, [[Jun-A266]] visits [[Sarah Palmer]] aboard [[Lockhart medical station|''Lockhart'' medical station]] to recruit her into the nascent [[SPARTAN-IV program]].<ref>'''[[Halo: Initiation]]''', ''[[Halo: Initiation Issue 1|Issue #1]]''</ref>
*'''January 26''': The black operation cell, [[Kilo-Five]], is formed by [[CINCONI]] Admiral [[Margaret Parangosky]]. Its members include [[Captain (Navy)|Captain]] [[Serin Osman]], [[Spartan-II]] [[Naomi-010]], professor [[Evan Phillips]], and three [[ODST]]s. Because of Parangosky's distrust of the [[Sangheili]], she tasks Kilo-Five with a mission to foment insurrection between the [[Swords of Sanghelios]], led by [[Thel 'Vadam]], and the [[Servants of the Abiding Truth]].
'''January 7'''
*'''January 27''': Kilo-Five departs for its first mission aboard the {{UNSCShip|Port Stanley}}.<ref>'''Halo: Glasslands''', ''page 79''</ref>
*The first class of the [[SPARTAN-IV program]], consisting of 145 volunteers, begin their augmentation procedures.<ref>[https://www.halowaypoint.com/en-us/universe/factions/spartans '''Halo Waypoint''' - ''Spartans'']</ref>
*'''January 27-31''':
'''January 8'''
**The [[UNSC Security Council]] takes actions to address the state of [[human]] [[Human colonies|colonies]]. Lord [[Terrence Hood]] plans to journey on a diplomatic mission to surviving worlds in order to discuss plans for reconstruction.
*The [[Unified Earth Government]] formally regains its power back from the [[United Nations Space Command]].<ref name="CatalogUEG">[https://forums.halowaypoint.com/yaf_postsm2969317_Catalog-Interaction.aspx#post2969317 '''Halo Waypoint''': ''Catalog Interaction (Query Answer: Human records indicate transition to noncombatant administrative control <nowiki>[ref: UEG] [January 8, 2553]. No notable adjustment in military [bureaucratic tactical]</nowiki> behavior and scope of authority.)'']</ref> The newly-elected [[President of the Unified Earth Government|president]], Dr. [[Ruth Charet]] gives her inaugural address.<ref>[http://halo.xbox.com/en-us/news/headline/the-halo-bulletin-101211-exclusive-book-excerpt-glasslands/280887 '''Halo Waypoint''' - ''Halo: Glasslands'' excerpt, Chapter 2]</ref><ref>[https://twitter.com/bsangel/status/685549382628868096 '''Jessica Shea Twitter''' ''Today in Halo - 1/8/2553'']</ref>
**Kilo-Five supplies arms to the Servants of the Abiding Truth on [[New Llanelli]] in the [[Brunel system]]. The unit also retrieves an [[Office of Naval Intelligence]] spy, [[Mike Spenser]], from a UNSC listening post on [[Reynes]].
'''January 15'''
**[[Commander]] [[Musa Ghanem]] holds a meeting with several admirals at [[HIGHCOM Facility Bravo-6]] to discuss the recent creation of the [[SPARTAN-IV program]] and the independent branch of the [[UNSC Armed Forces]], [[Spartan Operations]].<ref name="hi3"/>
*An [[ONI]] agent known as [[Oberon 5]] interrogates the [[San'Shyuum]] [[Alo Sebukah]], former [[Ministry of Abnegation|Vice Minister of Abnegation]] for the Covenant, at the [[Midnight Facility]].<ref name="lootcrate8">'''[[Halo Legendary Crate]]''', ''[[Halo Legendary Crate/Data Drops|Data Drop #8]]''</ref>
*'''January 31''': Dr. [[William Arthur Iqbal]] sends a message to his colleagues concerning the ongoing study of [[Forerunner]] artifacts and the [[Portal at Voi|Excession]] in particular.<ref>'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''', ''[[From the Office of Dr. William Arthur Iqbal]]''</ref>
'''January 26'''
*The [[Office of Naval Intelligence]] black operations cell, [[Kilo-Five]], is formed by [[CINCONI]] [[Admiral]] [[Margaret Parangosky]].  
'''January 27'''
*Kilo-Five departs [[Earth]] aboard the {{UNSCShip|Port Stanley}}.<ref>'''Halo: Glasslands''', ''page 79''</ref>
'''January 27–31'''
*The [[UNSC Security Council]] takes actions to address the state of [[human]] [[Human colonies|colonies]]. Lord [[Terrence Hood]] plans to journey on a diplomatic mission to surviving worlds in order to discuss plans for reconstruction. Kilo-Five supplies arms to the [[Servants of the Abiding Truth]] on [[New Llanelli]] in the [[Brunel system]]. The unit also retrieves an [[Office of Naval Intelligence]] spy, [[Mike Spenser]], from a UNSC listening post on [[Reynes]]. [[Commander]] [[Musa Ghanem]] holds a meeting with several admirals at [[HIGHCOM Facility Bravo-6]] to discuss the recent creation of the [[SPARTAN-IV program]] and the independent branch of the [[United Nations Space Command]] armed forces, [[Spartan Operations]].{{Ref/Reuse|hi3}}
'''January 31'''
*Dr. [[William Arthur Iqbal]] sends a message to his colleagues concerning the ongoing study of [[Forerunner]] artifacts and the [[Portal at Voi|Excession]] in particular.<ref>'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''', ''[[From the Office of Dr. William Arthur Iqbal]]''</ref>


===February===
===February===
*'''February 1''': [[Jul 'Mdama]] joins [[Avu Med 'Telcam]] and the Servants of the Abiding Truth in its opposition to the [[Arbiter]].<ref>[https://twitter.com/bsangel/status/694237634420297729 '''Jessica Shea Twitter''' ''Today in Halo - 2/1/2553'']</ref>
[[File:HM-Crew of Onyx.jpg|200px|thumb|'''February 2553''': The survivors of the [[Onyx Conflict]] within the shield world]]
*'''February 1-15''':
'''February 1'''
**Terrence Hood arrives at [[Sanghelios]] to meet with [[Thel 'Vadam]] and to formalize a [[Treaty of 2552|treaty of peace]] between the UEG and the [[Swords of Sanghelios]]. Hood also invites Thel to attend a [[Voi Memorial|memorial ceremony]] on [[Earth]] dedicated to those who died during the war.
*[[Jul 'Mdama]] joins [[Avu Med 'Telcam]] and the Servants of the Abiding Truth in their opposition to the [[Arbiter]], [[Thel 'Vadam]].<ref>[https://twitter.com/bsangel/status/694237634420297729 '''Jessica Shea Twitter''' ''Today in Halo - 2/1/2553'']</ref>
**After [[Lucy-B091]] discovers a population of [[Huragok]] within [[Shield World 006]], the the human survivors within the [[shield world]] are able to establish communications with the ONI ships prowling the debris field of [[Onyx]]. The Huragok soon bring the shield world into normal space from the [[slipspace bubble]] it was residing in, allowing ONI to retrieve Dr. [[Catherine Halsey]], SCPO [[Franklin Mendez]], and the [[SPARTAN-II Program|SPARTAN-IIs]] and [[SPARTAN-III program|SPARTAN-IIIs]] of [[Blue Team]]. Per an order from Admiral Parangosky, Dr. Halsey is arrested by Captain Serin Osman.
'''February 3'''
**ONI dispatches science teams to recover Forerunner technologies from the shield world, designating the sphere as [[Trevelyan|ONI Research Facility Trevelyan]] at Dr. Halsey's request.
*[[John-117]] had a psychological monitoring scheduled for this date.<ref name="Background">[https://www.youtube.com/watch?v=gzBDfIX_Wik ''Youtube'', Halo: The Master Chief Collection - Wake Up, John]</ref>
**Jul 'Mdama is captured by Kilo-Five and is transported to ONIRF Trevelyan.
'''February 1–15'''
*'''February 15''': Jun-A266  meets with [[Edward Buck]] on [[Sundown]], where the latter had travelled with [[Veronica Dare]] for a vacation while on shore leave. Jun offers Buck the opportunity to join the first class of the new SPARTAN-IV program. To Jun's surprise, Buck declines the offer, feeling that accepting would mean abandoning his team and Dare.<ref name="nb49">'''Halo: New Blood''', ''pages 49-55'' (Google Play edition)</ref><ref>[https://twitter.com/bsangel/status/699269947944382464 '''Twitter''': ''Today in Halo 2/15/2553'']</ref>
*Terrence Hood arrives at [[Sanghelios]] to meet with [[Thel 'Vadam]] and to formalize a [[Treaty of 2552|treaty of peace]] between the [[Unified Earth Government]] and the [[Swords of Sanghelios]]. Hood also invites Thel to attend a [[Voi Memorial|memorial ceremony]] on [[Earth]] dedicated to those who died during the war. [[Lucy-B091]] discovers a population of [[Huragok]] within [[Shield World 006]] and the human survivors within the [[shield world]] are able to establish communications with the [[ONI]] ships prowling the debris field of [[Onyx]]. The Huragok bring the shield world into normal space from the [[slipspace bubble]] it was residing in, allowing ONI to retrieve Dr. [[Catherine Halsey]], SCPO [[Franklin Mendez]], and the [[Spartan-II]]s and [[SPARTAN-III]]s of [[Blue Team]]. Dr. Halsey is arrested by Captain Serin Osman. ONI dispatches science teams to recover Forerunner technologies from the shield world, designating the sphere as [[Trevelyan|ONI Research Facility Trevelyan]] at Dr. Halsey's request. Jul 'Mdama is captured by Kilo-Five and is transported to ONIRF Trevelyan.
*'''February 28''': ''[[Shadow of Intent]]'' remains stationed on Earth for a diplomatic mission.<ref name="Catalog">[https://forums.halowaypoint.com/yaf_postsm2969315_Catalog-Interaction.aspx#post2969315 '''Halo Waypoint''': ''Catalog Interaction - Page 14'']</ref>
'''February 15'''
*'''Unknown date''': The [[Spartan-II]]s of [[Gray Team]] destroy the [[Sangheili colonies|Sangheili colony]] of [[Glyke]] with a [[NOVA bomb]] just days after the formalizing of the UNSC-Swords of Sanghelios treaty.<ref>''[[Halo: Envoy]]''</ref>
*Jun-A266  meets with [[Edward Buck]] on [[Sundown]], where the latter had travelled with [[Veronica Dare]] for a vacation while on shore leave. Jun offers Buck the opportunity to join the [[SPARTAN-IV program]]. To Jun's surprise, Buck declines the offer, feeling that accepting would mean abandoning his team and Dare.<ref name="nb49">'''Halo: New Blood''', ''pages 49-55'' (Google Play edition)</ref><ref>[https://twitter.com/bsangel/status/699269947944382464 '''Twitter''': ''Today in Halo 2/15/2553'']</ref>
'''February 18'''
*It is three days to Margaret Paragoskys birthday, and Serin Osman gifts her a [[Huragok]].{{Ref/Novel|Id=HGC10|Gla|Chapter=10}}
'''February 19'''
*[[000 Tragic Solitude]] begins to research and catalog the myriad [[Flood]] forms and reflects on the uncomfortable truth the parasite exemplifies.<ref name="AUT">'''Halo Wars 2''', ''[[Phoenix Logs]] — An Uncomfortable Truth Part 1''</ref>
'''February 21'''
*Margaret Parangosky turns 92.{{Ref/Novel|Id=HGC13|Gla|Chapter=13}}
'''February 28'''
*The ''[[Shadow of Intent]]'' is stationed at Earth.<ref name="Catalog">[https://forums.halowaypoint.com/yaf_postsm2969315_Catalog-Interaction.aspx#post2969315 '''Halo Waypoint''': ''Catalog Interaction - Page 14'']</ref>


===March===
===March===
*[[Andrew Del Rio]] is chosen as the [[commanding officer]] of the experimental vessel {{UNSCShip|Infinity}}.<ref name = "ThursdayWar">''[[Halo: The Thursday War]]''</ref>
[[File:HM-BloodingYears.jpg|300px|thumb|'''March 2553''': The Servants of the Abiding Truth launch an attack on [[Kolaar Mountain]].]]
*'''March 3''': In a ceremony presided over by [[Lord Hood]], a [[Voi Memorial|monument]] is erected in the [[Kenya]]n savannah near [[Mount Kilimanjaro]] to officially mark the end of the [[Human-Covenant War]], and in remembrance of those who gave their lives in the war, including [[John-117]], who is labeled [[MIA]] and is (presumably) posthumously promoted to [[Master Chief Petty Officer of the Navy]]. A full military detail, led by [[Gunnery Sergeant]] [[Stacker]] and including [[Private First Class|PFC]] [[Chips Dubbo]], deliver a [[Wikipedia:Three-volley salute|three volley salute]] to the fallen. All the remaining SPARTAN-II super-soldiers are present for the ceremony. After the ceremony, [[Thel 'Vadam]] and his comrades depart [[Earth]] for their homeworld, [[Sanghelios]].<ref>'''[[Halo 3]]''', campaign level ''[[Halo (Halo 3 level)#Eulogy|Halo]]''</ref> On this date also, Admiral [[I. Zhou]] submits a full report of the [[URNA Southwest Campaign]], labeled Sequence Log 03-0997.<ref name="loot2">'''[[Halo Legendary Crate]]''', ''[[Halo Legendary Crate/Data Drops|Data Drop #2]]''</ref>
'''March 1'''
*Dr. Catherine Halsey is interrogated by Admiral Margaret Parangosky at [[Ivanoff Station]].
*Admiral [[I. Zhou]] submits a full report of the [[URNA Southwest Campaign]], labeled Sequence Log 03-0997.<ref name="loot2">'''[[Halo Legendary Crate]]''', ''[[Halo Legendary Crate/Data Drops|Data Drop #2]]''</ref>
'''March 2'''
*John-117 had a interlace synchronization test scheduled for this date.{{Ref/Reuse|Background}}
'''March 3'''
*In a ceremony presided over by [[Lord Hood]], a [[Voi Memorial|monument]] is erected in the [[Kenya]]n savannah near [[Mount Kilimanjaro]] to officially mark the end of the [[Human-Covenant War]] and to remember those who gave their lives in it. After the ceremony, the ''Shadow of Intent'' departs for [[Sanghelios]].<ref>'''[[Halo 3]]''', campaign level ''[[Halo (Halo 3 level)#Eulogy|Halo]]''</ref>  
*Dr. Catherine Halsey is interrogated by Admiral Margaret Parangosky on [[Ivanoff Station]].
*[[Dr. Halsey's personal journal]] is locked up after being analyzed by ONI.
*[[Dr. Halsey's personal journal]] is locked up after being analyzed by ONI.
*'''March 16: '''[[Evan Phillips]] is assigned on an intelligence-gathering mission on Sanghelios.<ref>[https://twitter.com/bsangel/status/710159126056165376 '''Jessica Shea's Twitter''' - ''Today in Halo: 3/16/2553'']</ref>
'''March 16'''
*Kilo-Five travel to the Insurrectionist-controlled colony [[Venezia]] and meet with the local ONI contact, [[Mike Spenser]].
*[[Evan Phillips]] is assigned to an intelligence-gathering mission on Sanghelios.<ref>[https://twitter.com/bsangel/status/710159126056165376 '''Jessica Shea's Twitter''' - ''Today in Halo: 3/16/2553'']</ref>
*Insurgent attacks, carried out by [[Jiralhanae]] servants, result in the death of dozens of Sangheili in [[Ontom]] on [[Sanghelios]].<ref name = "ThursdayWar"/> During the attack, Evan Phillips and a fragment of [[Black-Box]] make their way into the [[Temple of the Abiding Truth]]. Eventually, Phillips activates a [[slipspace translocation|translocation portal]] within the structure and is transported to [[Acroli]].
*Kilo-Five travels to [[Venezia]] and meets with [[Mike Spenser]] once again.
*Kilo-Five arrive at Sanghelios to retrieve Phillips. Upon failing to find Phillips in Ontom, they track him down to Acroli, specifically the [[Nes'alun Keep]], under attack by forces from the nearby [[Lacalu Keep]]. Phillips is rescued while the Sangheili in the keep are killed by the invaders.
*An insurgent attack by [[Jiralhanae]] servants results in the death of dozens of Sangheili in [[Ontom]] on [[Sanghelios]].<ref>'''Halo: The Thursday War''', ''pages 22-23''</ref> During the attack, Evan Phillips and a fragment of [[Black-Box]] make their way into the [[Temple of the Abiding Truth]]. Eventually, Phillips activates a [[slipspace translocation|translocation portal]] within the structure and is transported to [[Acroli]].
*{{UNSCShip|Infinity}} is installed further Forerunner upgrades, most notably the ship's slipspace drive, by Dr. Catherine Halsey and a number of Huragok recovered from ONIRF Trevelyan.
*Kilo-Five arrives at Sanghelios to retrieve Phillips. Upon failing to find Phillips in Ontom, it tracks him to [[Nes'alun Keep]], under attack by forces from the nearby [[Lacalu Keep]]. Phillips is rescued but the Sangheili in the keep are killed by the invaders.
*Forces loyal to the [[Servants of the Abiding Truth]] launch an assault on [[Vadam]], starting the [[Blooding Years]].<ref>'''Halo: The Thursday War''', ''page 28''</ref> This attack is eventually repelled by the arrival of UNSC ''Infinity''. During the orbital battle between 'Vadam's forces and the Sangheili insurgents, Jul 'Mdama's wife, [[Raia 'Mdama]], is killed.
'''March 22'''
 
*The {{UNSCShip|Infinity}} is launched after receiving its final upgrades with Forerunner technology.
*Forces loyal to the [[Servants of the Abiding Truth]] launch an assault on [[Vadam]], starting the [[Blooding Years]].<ref>'''Halo: The Thursday War''', ''page 28''</ref> This attack is eventually repelled by the arrival of the UNSC ''Infinity''. During the battle, Jul 'Mdama's wife, [[Raia 'Mdama|Raia]], is killed.
*Admiral Parangosky approves the deployment of an automated probe delivery craft to [[Installation 00]] using advanced slipspace technology.<ref name="hitd c2">'''Halo: Hunters in the Dark''', Chapter 2</ref>
*Admiral Parangosky approves the deployment of an automated probe delivery craft to [[Installation 00]] using advanced slipspace technology.<ref name="hitd c2">'''Halo: Hunters in the Dark''', Chapter 2</ref>


===April===
===April===
'''April 1'''
'''April 1'''
*Jul 'Mdama escapes captivity on Trevelyan via a slipspace portal. He is transported to [[Hesduros]], where he is welcomed by the local Sangheili as a messenger of the gods. Jul plans to use the locals' religious devotion to his own advantage, banding them together to form a [[Jul 'Mdama's Covenant faction|new splinter group]] of Covenant.<ref>[https://twitter.com/bsangel/status/715956593452560385 '''Twitter''': ''Today in Halo 4/1/2553'']</ref>
*Jul 'Mdama escapes captivity on Trevelyan via a slipspace portal. He is transported to [[Hesduros]], where he is welcomed by the local Sangheili as a messenger of the gods. Jul uses the locals' religious devotion to his own advantage and the result is the start of a [[Jul 'Mdama's Covenant|new faction]] devoted to Covenant ideals.<ref>[https://twitter.com/bsangel/status/715956593452560385 '''Twitter''': ''Today in Halo 4/1/2553'']</ref>
 
'''April 5'''
'''April 5'''
*Kilo-Five return to Venezia in order to continue their mission of tracking down the [[Kig-Yar]] pirate [[Sav Fel]] and the terrorist [[Staffan Sentzke]].
*Kilo-Five returns to Venezia in order to track down the [[Kig-Yar]] pirate, [[Sav Fel]], and the insurrectionist, [[Staffan Sentzke]]. Serin Osman is promoted to [[Rear admiral (lower half)|Rear Admiral]] and a small party is held aboard ''Port Stanley'' in her honor by Kilo-Five.
*Serin Osman is promoted to [[Rear admiral (lower half)|Rear Admiral]] and a small party is held aboard ''Port Stanley'' in her honor by Kilo-Five.
 
'''April 14'''
'''April 14'''
*Sav Fel sells the [[CCS-class battlecruiser|Covenant battlecruiser]] ''[[Pious Inquisitor]]'' to Staffan Sentzke, who intends to use the ship to force UEG authorities to provide answers about the disappearance of [[Naomi-010|his daughter]].
*Sav Fel sells the {{Pattern|Ket|battlecruiser}} ''[[Pious Inquisitor]]'' to Staffan Sentzke, who intends to use the ship to force UEG authorities to provide answers about the disappearance of [[Naomi-010|his daughter]] many years earlier. Fel demonstrates the ship's capabilities by using its [[energy projector]] to glass Forerunner ruins on [[Shaps III]].<ref name="hll22">'''Halo: Last Light''', ''pages 22-23'' (Google Play edition)</ref> This causes [[Line Installation 444-447]] to send an automated distress signal to [[Covert Support Base 4276]], located on planet [[Gao]] in the nearby [[Cordoba system]]. The distress call awakens the support base's {{Class|archeon|ancilla}}, [[Intrepid Eye]], from stasis. After her requests for a status report, Intrepid Eye attempts to launch a reconnaissance drone, triggering a cave-in which cripples Support Base 4276 almost entirely.<ref name="hll36">'''Halo: Last Light''', ''pages 36-39'' (Google Play edition)</ref>  
**In a demonstration of the ship's capabilities, Fel uses the ''Inquisitor'''s [[energy projector]] to glass Forerunner ruins on [[Shaps III]].<ref name="hll22">'''Halo: Last Light''', ''pages 22-23'' (Google Play edition)</ref> This causes [[Line Installation 444-447]] to send an automated distress signal to [[Covert Support Base 4276]], located on planet [[Gao]] in the nearby [[Cordoba system]]. The distress call awakens the support base's {{Class|archeon|ancilla}}, [[Intrepid Eye]], from stasis. After her requests for a status report, Intrepid Eye attempts to launch a reconnaissance drone, triggering a cave-in which cripples Support Base 4276 almost entirely.<ref name="hll36">'''Halo: Last Light''', ''pages 36-39'' (Google Play edition)</ref>
*[[Vasily Beloi]] and [[Malcolm Geffen]] infiltrate the [[Venezian militia]] in order to gather information about Sentzke and ''Pious Inquisitor''. Following a series of suspicious incidents, Sentzke begins to doubt their cover story and has them detained and tortured. [[Naomi-010]] and [[Lian Devereaux]] eventually arrive and successfully extract Mal and Vaz. During the rescue, Sentzke is also taken captive aboard ''Port Stanley''.  
 
*A [[Kig-Yar]] crew led by [[Shipmistress]] [[Chol Von]] tracks down and boards ''Pious Inquisitor'' with the intent of seizing the ship for itself. Kilo-Five boards ''Pious Inquisitor'' and a skirmish occurs between it and the Kig-Yar. Chol Von eventually has her crew destroy the ship. Staffan Sentzke is presumed dead in the ensuing explosion, but he actually had managed to escape.
'''April 14-'''
*Several tourists exploring Gao's [[Montero Cave System]] find themselves miraculously cured of various illnesses and the caves quickly see an influx of sick people hoping for similar miracle cures.<ref name="hll8">'''Halo: Last Light''', ''pages 8-10'' (Google Play edition)</ref> The cures are actually the work of the [[Lifeworker]] Huragok [[Roams Alone]], attached to Gao's Support Base 4276.{{Ref/Reuse|hll36}}
*[[Vasily Beloi]] and [[Malcolm Geffen]] infiltrate the Venezian militia in order to gather information about Sentzke and ''Pious Inquisitor''. Following a series of suspicious incidents, Sentzke begins to doubt the ODSTs' cover story of deserters and has them captured and tortured. However, [[Naomi-010]] and [[Lian Devereaux]] eventually arrive and successfully extract Mal and Vaz. During the rescue, Sentzke is also taken captive aboard ''Port Stanley''.
*Commander [[Murtag Nelson]], a field analyst at an ONI listening post, takes note of strange transmissions emanating from the [[Montero Cave System]] on Gao. Nelson correctly hypothesizes that a Forerunner [[ancilla]] is responding to the bombardment on Shaps III. Admiral Parangosky subsequently gives Nelson command of the [[717th Xeno-Materials Exploitation Battalion]] and tasks them with retrieving the Forerunner AI.{{Ref/Reuse|hll22}}
*A [[Kig-Yar]] crew led by [[Shipmistress]] [[Chol Von]] track down and board ''Pious Inquisitor'' with the intent of seizing the ship for themselves.
*Kilo-Five board ''Pious Inquisitor'' and a skirmish occurs between them and the Kig-Yar. Chol Von eventually has her crew destroy the ship. Staffan Sentzke is presumed dead in the ensuing explosion, but he actually manages to escape without ONI's knowledge.
*Several tourists exploring Gao's [[Montero Cave System]] find themselves having been miraculously cured of various illnesses and the caves quickly see an influx of sick people hoping for similar miracle cures.<ref name="hll8">'''Halo: Last Light''', ''pages 8-10'' (Google Play edition)</ref> The cures are actually the work of the [[Lifeworker]] Huragok [[Roams Alone]], attached to Gao's Support Base 4276.<ref name="hll36"/>
*Commander [[Murtag Nelson]], a field analyst at an ONI listening post, takes note of strange transmissions emanating from the [[Montero Cave System]] on Gao. Nelson correctly hypothesizes that a Forerunner [[ancilla]] is responding to the bombardment on Shaps III. Admiral Parangosky subsequently gives Nelson command of the [[717th Xeno-Materials Exploitation Battalion]] and tasks them with retrieving the Forerunner AI.<ref name="hll22"/>


===May===
===May===
*[[ONI]]'s [[Materials Group]] forms the [[Damascus Ordinance Commission]], headed by the major defense companies and sponsored by ONI.<ref>'''[[Halo Mythos]]''', ''page 128''</ref> The commission several conditions on the use of [[MJOLNIR Powered Assault Armor (GEN2)|MJOLNIR GEN2]] variants.<ref name="VIS">'''[[Halo 4: The Essential Visual Guide]]'''</ref>
'''May'''
 
*[[ONI]]'s [[Materials Group]] forms the [[UNSC Ordnance Commission|Damascus Ordnance Commission]], headed by major defense companies and sponsored by ONI.<ref>'''[[Halo Mythos]]''', ''page 128''</ref> The commission places several conditions on the use of [[MJOLNIR Powered Assault Armor (GEN2)|MJOLNIR GEN2]] variants.<ref name="VIS">'''[[Halo 4: The Essential Visual Guide]]'''</ref>
'''May 6'''
'''May 6'''
*ONI learns the [[Banished]] had raided an air base formerly belonging to the Covenant, and that their leader, [[Atriox]], had been captured and taken aboard the assault carrier ''[[Enduring Conviction]]''. Twelve hours later, the ''Enduring Conviction'' broke formation and contact with the rest of its fleet. The ''Conviction'' was hailed, warned, and then fired upon when it ignored orders. The ''Conviction'' performed evasive maneuvers, returned fire and escaped. Shortly after this, the ship and its crew, led by [[Let 'Volir]], swore fealty to the Banished.<ref name="RoA3">'''Halo Wars 2''', ''[[Phoenix Logs]] — Rise of Atriox III''</ref>
*ONI learns the [[Banished]] had raided an air base formerly belonging to the Covenant on [[Kostroda]], and that its leader, [[Atriox]], had been captured and taken aboard the assault carrier ''[[Enduring Conviction]]''. Twelve hours later, the ''Enduring Conviction'' broke formation and contact with the rest of the [[Fleet of Recalcitrant Ire]]. The ''Conviction'' was hailed and warned by the [[Fleetmaster]] [[Arkad Nar 'Kulul]], and then fired upon when it ignored orders. The ship performed evasive maneuvers, returned fire and escaped. Shortly after this, the ship and its crew, led by [[Let 'Volir]], swore fealty to the Banished.<ref name="RoA3">'''Halo Wars 2''', ''[[Phoenix Logs]] — Rise of Atriox III''</ref>
 
'''May 7'''
'''May 7'''
*The research and development vessel ''[[Argent Moon]]'' is commissioned by ONI.<ref name="universe">[https://www.halowaypoint.com/en-us/universe/vehicles/argent-moon '''Halo Waypoint''': ''Argent Moon'']</ref>
*The research and development vessel ''[[Argent Moon]]'' is commissioned by ONI.<ref name="universe">[https://www.halowaypoint.com/en-us/universe/vehicles/argent-moon '''Halo Waypoint''': ''Argent Moon'']</ref>
 
'''May 14 ''(approximately)'''''
'''May 14 ''(approx.)'''''
*A UNSC [[task force]] enters the [[Cordoba system]] and requests permission to conduct research in Gao's Montero Cave System. While [[Gao Republic|Gao's planetary government]] initially denies the requests, [[Tejo Aponte|President Aponte]] eventually allows a small research team to land. The UNSC subsequently deploys the 717th Xeno-Materials Exploitation Battalion, along with the attached [[Blue Team]], to the [[Montero]] region and declares the caverns off-limits to anyone else.{{Ref/Reuse|hll8}}
*A UNSC [[task force]] enters the [[Cordoba system]] and requests permission to conduct research in Gao's Montero Cave System. While [[Gao Republic|Gao's planetary government]] initially denies the requests, [[Tejo Aponte|President Aponte]] eventually allows a small research team to land. The UNSC subsequently deploys the 717th Xeno-Materials Exploitation Battalion, along with the attached [[Blue Team]], to the [[Montero]] region and declares the caverns off-limits to anyone else.<ref name="hll8"/>
*After the UNSC battalion's arrival, several people are found brutally murdered in the Montero Cave System. The murders are the work of the Forerunner ancilla Intrepid Eye, who seeks to generate conflict among the humans in order to force the UNSC to cease its efforts to capture her.{{Ref/Reuse|hll36}}
*After the UNSC battalion's arrival, several people are found brutally murdered in the Montero Cave System. The murders are the work of the Forerunner ancilla Intrepid Eye, who seeks to generate conflict among the humans in order to force the UNSC to withdraw in their efforts to capture her.<ref name="hll36"/>


===June===
===June===
*A man named [[W. B. Eton]] becomes the handler of Halsey's personal journal and later sends it to someone who was involved in [[Operation: WHITE GLOVE]].
'''June'''
*A man named [[W. B. Eton]] becomes the handler of [[Catherine Halsey]]'s personal journal and later sends it to someone who was involved in [[Operation: WHITE GLOVE]].


===July===
===July===
[[File:HM-Gao.png|thumb|250px|'''July 4–5, 2553''': The Battle of Wendosa.]]
'''July 2'''
'''July 2'''
*The [[Gao Ministry of Protection]]'s [[Special Inspector]] [[Veta Lopis]] and her team arrive in the Montero Cave System to investigate the recent murders.<ref>'''Halo: Last Light''', ''pages 5-6'' (Google Play edition)</ref>
*The [[Gao Ministry of Protection]]'s [[Special Inspector]] [[Veta Lopis]] and her team investigates the recent murders in the Montero Cave System.<ref>'''Halo: Last Light''', ''pages 5-6'' (Google Play edition)</ref> The Huragok, [[Roams Alone]], is spotted and attacked by the UNSC marine, Private [[Hayes]]. [[Intrepid Eye]] kills he and Major [[Ira Halal]] and discovers a fragment of [[Wendell]], an AI created specifically for [[Operation: JOVIAN WHISTLE]]. Veta Lopis learns that the UNSC's investigation on the planet concerns a [[Forerunner]] [[ancilla]]. [[Gao]] [[Minister of Protection]] [[Arlo Casille]] meets with the [[dokab]] [[Castor]] of the [[Keepers of the One Freedom]] and [[Reza Linberk]] of the [[Venezian militia]] to plan a coup against [[President of the Gao Republic|President]] [[Tejo Aponte]].
 
'''July 3'''
'''July 3'''
 
*Members of Blue Team accompany Lopis and her partner, [[Cirilo]] in a search for the missing Halal and Hayes. They arrive at their location and discover their corpses. Fred recovers the fragment of Wendell from Halal's damaged TACPAD and places him in his helmet's data chip. While investigating the scene, Cirilo finds a trail of blood from Roams Alone and the team resolves to follow it.
'''July 4'''
'''July 4'''
 
*Intrepid Eye directs Aggressor Sentinels to attack the humans and though they destroy the Sentinels, Cirilo is killed and Olivia-G291's legs are badly wounded. Veta Lopis learns of [[SPARTAN-III Gamma Company|Gamma Company]]'s [[Project CHRYSANTHEMUM|unique augmentations]] and places them, [[Mark-G313]] in particular, at the top of her list of suspects for the murders. The humans are met by Roams Alone, who they agree to take with them back to the surface. The Keepers launch [[Battle of Wendosa|an attack]] on [[Wendosa]], believing that Intrepid Eye is in the town. The group also dispatches forces into the caverns which come into conflict with Veta and the Spartans.
'''July 5'''
'''July 5'''
 
*Fred-104 captures Intrepid Eye with a [[scramble grenade]]. The ancilla escapes and is pursued by the UNSC and Keepers alike and is eventually recaptured by he, Olivia, and Ash. Fred boards a [[UH-144 Falcon]] with the ancilla but is shot down. Veta Lopis attacks [[Castor]] and wounds him before the [[Jiralhanae]] can harm Fred. The 717th Xeno-Materials Exploitation Battalion's Alpha Company arrives at their location to fend off the Keepers.
'''July 6'''
'''July 6'''
*Blue Team destroys [[Covert Support Base 4276]] with a [[HAVOK tactical nuclear weapon]], having successfully captured the Forerunner ancilla [[Intrepid Eye]]. With the UNSC forces withdrawing and the majority of the [[Keepers of the One Freedom]] task force killed, the [[Operation: JOVIAN WHISTLE|situation on Gao]] is stabilized; however, the colony is left under a staunchly anti-UEG administration headed by [[President of the Gao Republic|President]] [[Arlo Casille]].<ref>'''Halo: Last Light''', Chapter 28</ref>
*Blue Team destroys [[Covert Support Base 4276]] with a [[HAVOK tactical nuclear weapon]], having successfully captured the Forerunner ancilla [[Intrepid Eye]]. With the UNSC forces withdrawing and the majority of the [[Keepers of the One Freedom]] task force killed, the [[Operation: JOVIAN WHISTLE|situation on Gao]] is stabilized; however, the colony is left under a staunchly anti-UEG administration headed by President [[Arlo Casille]].<ref>'''Halo: Last Light''', Chapter 28</ref> Spartans [[Ash-G099]], [[Olivia-G291]], and [[Mark-G313]] are reassigned to an ONI [[Ferret]] unit led by Veta Lopis, Admiral Parangosky having deemed public knowledge of [[SPARTAN-III Gamma Company|Gamma Company]]'s [[Project CHRYSANTHEMUM|brain mutations]] too dangerous.<ref name="hll330">'''[[Halo: Last Light]]''', Chapter 28, ''pages 330-331'' (Google Play edition)</ref>
*Spartans [[Ash-G099]], [[Olivia-G291]], and [[Mark-G313]] are reassigned to an ONI [[Ferret]] unit led by Veta Lopis, Admiral Parangosky having deemed public knowledge of [[SPARTAN-III Gamma Company|Gamma Company]]'s [[Project CHRYSANTHEMUM|brain mutations]] too dangerous.<ref name="hll330">'''[[Halo: Last Light]]''', Chapter 28, ''pages 330-331'' (Google Play edition)</ref>
 
{{Expand-section}}


===August===
===August===
*Spartans [[Lucy-B091]] and [[Tom-B292]] are assigned to the Spartan branch.<ref name="catalog">[https://forums.halowaypoint.com/yaf_postsm2988772_Catalog-Interaction.aspx#post2988772 '''Halo Waypoint''': ''Catalog Interaction - Page 38'']</ref>
'''August'''
*Spartans [[Lucy-B091]] and [[Tom-B292]] are assigned to [[Spartan Operations]].<ref name="catalog">[https://forums.halowaypoint.com/yaf_postsm2988772_Catalog-Interaction.aspx#post2988772 '''Halo Waypoint''': ''Catalog Interaction - Page 38'']</ref>


===September===
===September===
*The official status of Ash-G099, Olivia-G291, and Mark-G313 is changed to [[killed in action]] during [[Operation: JOVIAN WHISTLE]]<ref name="hll330"/> as part of the ONI cover-up of Gamma Company.<ref name="catalog"/>
[[File:HM - SOI.jpg|thumb|200px|'''September 2553''': Tem'Bhetek engages Rtas 'Vadum and [[Tul 'Juran]] aboard the ''Shadow of Intent''.]]
'''September'''
*The official status of Ash-G099, Olivia-G291, and Mark-G313 is changed to [[killed in action]] during [[Operation: JOVIAN WHISTLE]]{{Ref/Reuse|hll330}} as part of the ONI cover-up of Gamma Company.{{Ref/Reuse|catalog}}
*The [[San'Shyuum]] [[prelates|prelate]], [[Tem'Bhetek]], and the [[Ministry of Preparation|Minister of Preparation]], [[Boru'a'Neem]], seek revenge against the [[Sangheili]] for the losses they incurred during the [[Great Schism]]. They hatch a plot to use a [[prototype Halo installation]] to commit genocide on [[Sanghelios]]. Blaming Rtas 'Vadum personally for the loss of his wife, the prelate attempts to draw him in so he can capture his ship by attacking two Sangheili colonies, [[Rahnelo]] and [[Duraan]]. The efforts of the San'shyuum are thwarted by 'Vadum and the crew of the ''[[Shadow of Intent]]'' and Tem realizes that he has been lied to and used by the Minister of Preparation. He ultimately gives his life to destroy the Halo ring.<ref name="SoI79">'''Halo: Shadow of Intent''', ''pages 79-80'' (Google Play edition)</ref>


===October===
===October===
'''October 14'''
'''October 14'''
*'''1420 hours-:''' Veta Lopis and her Ferret Team are stationed at [[UNSC Recreational Facility 6055-NA-A]] on [[Neos Atlantis]] to participate in a training exercise that turns into a fight for their lives as they fall under attack by [[Dark Moon Enterprises]]. However, with [[Spencer Hume]] and [[Ota Gallo]] dead, ONI is able to avert a crippling public relations crisis.<ref>'''[[Halo: Fractures]]''', "[[A Necessary Truth]]"</ref>
*Veta Lopis and her Ferret Team are stationed at [[UNSC Recreational Facility 6055-NA-A]] on [[Neos Atlantis]] to participate in a training exercise that turns into a fight for their lives as they fall under attack by [[Dark Moon Enterprises]]. However, with [[Spencer Hume]] and [[Ota Gallo]] dead, ONI is able to avert a crippling public relations crisis.<ref>'''[[Halo: Fractures]]''', "[[A Necessary Truth]]"</ref>


===November===
===November===
*A pioneer group arrives at [[Reach]] to prepare for the planet's eventual reterraforming,<ref>[https://forums.halowaypoint.com/yaf_postsm2994218_Catalog-Interaction.aspx#post2994218 ''Halo Waypoint'' - '''Catalog Interaction (Page 43)''']</ref> an undertaking that would be well underway by [[2589]].<ref>'''[[Halo: Reach]]''', campaign level ''[[Lone Wolf]]''</ref>
'''November 23'''
*The ONI probe delivery drone dispatched in March arrives at Installation 00 and deploys its probes. After initial transmissions confirming the Ark's survival, all of the probes go offline.<ref name="hitd c2"/>
*Around 1419 hours, [[Damon]], a fifth generation [[Dumb AI|"dumb"]] Class-L [[UNSC Defense Force|military]] [[artificial intelligence]], is created.<ref name="R4">'''[[Halo: Retribution]]''', chapter 4</ref>
*'''November 28:''' [[Luther Mann]], while exploring [[Trevelyan]], discovers the location of [[Zeta Halo]].<ref>'''https://twitter.com/bsangel/status/670658429149540352''', ''Today in Halo''</ref>
'''November 28'''
*[[Luther Mann]], while exploring [[Trevelyan]], discovers the location of [[Installation 07]].<ref>'''https://twitter.com/bsangel/status/670658429149540352''', ''Today in Halo''</ref>
*A pioneer group arrives at [[Reach]] to prepare for the planet's eventual reterraforming.<ref>[https://forums.halowaypoint.com/yaf_postsm2994218_Catalog-Interaction.aspx#post2994218 ''Halo Waypoint'' - '''Catalog Interaction (Page 43)''']</ref>
*The ONI probe delivery drone dispatched in March arrives at [[Installation 00]] and deploys its probes. After initial transmissions confirm the Ark's survival, all of the probes go offline.{{Ref/Reuse|hitd c2}}


===December===
===December===
*The UNSC commissions the {{UNSCShip|Rubicon}}, a ship equipped with state-of-the-art Forerunner slipspace drive technology, [[remote contact team]]s and survey drones, for a manned mission to the Ark.<ref name="hitd c2"/>
'''December 6'''
*[[Vice Admiral]] [[Graselyn Tuwa]] is discovered killed aboard the {{UNSCShip|Donoma}}, with her family having been abducted.
'''December 8'''
*The Office of Naval Intelligence sends Veta Lopis' Ferret Team to find her killer and rescue her family.
'''December 12'''
*[[Office of Naval Intelligence]] operative [[Veta Lopis]] and her team of [[Spartan-III]] [[Ferret]]s are present at [[Trattoria Georgi]] in [[New Tyne]], [[Venezia]], as part of a mission.<ref>''[[Halo: Retribution]]'' ''Chapter 1''</ref>
'''December 21'''
*Two ONI agents, [['D']] and [['S']], speculate which are Atriox's motivations after the demise of the Covenant empire.<ref>'''[[Halo Wars 2]]''' - ''Phoenix Logs: Rise of Atriox IV''</ref>
*The UNSC commissions the {{UNSCShip|Rubicon}}, a ship equipped with state-of-the-art Forerunner slipspace drive technology, [[remote contact team]]s and survey drones, for a manned mission to the Ark.{{Ref/Reuse|hitd c2}}
{{Expand-section}}


===Unknown date===
===Unknown date===
*Manufactured by [[SinoViet Heavy Machinery]], the {{Class|Mulsanne|light frigate}} enters service.{{Ref/Book|Id=Enc22P121|Enc22|Page=121}}
*Manufactured by [[Martian Metals Shipyards]], the {{Class|Poseidon|light carrier}} enters service.{{Ref/Book|Id=Enc22P127|Enc22|Page=127}}
*The [[MJOLNIR Powered Assault Armor (GEN2)]] enters into service.
*[[Gabriel Thorne]]'s grandfather dies.<ref>'''[[Halo: Escalation]]''' - ''Issue #7''</ref>
*[[Gabriel Thorne]]'s grandfather dies.<ref>'''[[Halo: Escalation]]''' - ''Issue #7''</ref>
*[[Big M Studio]], a company that deals with collectible items and replicas, is established.<ref>'''[[Halo: Reach Legendary Edition]]''' - ''Noble team Statue Instructions''</ref>
*[[Big M Studio]], a company that deals with collectible items and replicas, is established.<ref>'''[[Halo: Reach Legendary Edition]]''' - ''Noble team Statue Instructions''</ref>
*[[Holly Tanaka]] and two other survivors from [[Minab]]'s glassing are rescued by the UNSC.<ref>'''Halo: Escalation''' - ''Issue #17''</ref>
*[[Holly Tanaka]] and two other survivors from [[Minab]]'s glassing are rescued by the UNSC.<ref>'''Halo: Escalation''' - ''Issue #17''</ref>
*The UNSC Navy takes inventory of its remaining fleet assets; all surviving warships are recalled to the Sol system. The UNSC Navy has been reduced to a fleet of several hundred vessels as plans for reconstruction are immediately enacted.<ref>'''Halo Mythos''', p. 132</ref>
*Before May 2553, a iteration of the [[ENFORCER-class Mjolnir]] passed tests per the Ankara Field Stricture BL58-0.<ref name="H4EVG">'''[[Halo 4: The Essential Visual Guide]]''' ''- Page 152''</ref>
*At some point before the ship's official launch, a [[New Colonial Alliance]] strike force led by [[Ilsa Zane]] [[Raid on UNSC Infinity|infiltrates]] the {{UNSCShip|Infinity}} and briefly commandeers the [[flagship]], but is defeated by the five [[Spartan-IV]]s aboard the vessel at the time.<ref name="hi3">'''Halo: Initiation''', ''[[Halo: Initiation Issue 3|Issue #3]]''</ref>
*The Smart AI [[Leonidas]] is created around this year.<ref>'''[[Halo: Bad Blood]]'''</ref>
*The [[M510 Mammoth]],<ref name="HOSFM202">'''[[Halo: Official Spartan Field Manual]]''', ''page 202''</ref> the [[AV-49 Wasp]],<ref name="HOSFM204">'''Halo: Official Spartan Field Manual''', ''page 204''</ref> and the [[STINGER-class Mjolnir]]<ref name="tales stingers">[https://www.halowaypoint.com/en-us/news/canon-fodder-tales-stingers '''Halo Waypoint''': ''Canon Fodder - Tales & Stingers'']</ref> are introduced.
*[[Gudam Keschun]] is born.
*A new type of [[Banished dreadnought|dreadnought]] is manufactured by [[Irusk Workshop]] and integrated into the [[Banished]] fleet.{{Ref/Book|Id=Enc22|Enc22|Page=462}}


==Sources==
==Sources==
<references/>
{{Ref/Sources|2}}

Revision as of 11:01, May 19, 2024

Version 1 of the timeline image
2552 ← 2553 → 2554
Handshake-large.jpg
Arbiter Thel 'Vadam and Fleet Admiral Hood shake hands in the Voi Memorial ceremony

Previous: 2551 • 2552

Next: 2554 • 2555

Century
26th century
Years in the 2550s
2550 • 2551 • 2552 • 2553 • 2554
2555 • 2556 • 2557 • 2558 • 2559
For a complete list, see our timeline category.

2553 was a year in the 2550s in the 26th century. It was the first year that saw relative peace for humanity as the Covenant ceased to exist following its collapse during the Great Schism and its defeat at the end of the Human-Covenant War.[1] The end of the war was formalized with a ceremony in March 2553 with a prior treaty agreed upon between the Unified Earth Government and the Swords of Sanghelios in February 2553. Despite the end of large-scale hostilities and the absence of humanity being threatened with extinction, new factions sprung up in the power vacuum left behind by the ancient empire and new battles followed. 2553 was a year that saw the United Nations Space Command make major advances in terms of its technological prowess and military capability, despite a lesser reach over the galaxy incurred by the loss of so many colonies and assets during the decades of war. Ex-Covenant societies were faced with the challenge of redefining their purpose in a galaxy that no longer provided them with the rigid structure the hegemony had. Some sought revenge on humans and some on others from the Covenant. Some sought to be left alone and others made grabs for power. And some, such as Thel 'Vadam's Swords of Sanghelios, made in-roads with their former enemies for the mutual benefit of all parties.

Events

January

January 1 After days of no indications that they were soon to be rescued following the destruction of Glyke and the UNSC Vacuna, Gray Team enters cryostasis.[2]

January 2553: Ilsa Zane announces her intention to steal the Infinity.

Before January 7

January 7

  • The first class of the SPARTAN-IV program, consisting of 145 volunteers, begin their augmentation procedures.[4]

January 8

January 15

January 26

January 27

January 27–31

January 31

February

February 2553: The survivors of the Onyx Conflict within the shield world

February 1

February 3

  • John-117 had a psychological monitoring scheduled for this date.[13]

February 1–15

February 15

  • Jun-A266 meets with Edward Buck on Sundown, where the latter had travelled with Veronica Dare for a vacation while on shore leave. Jun offers Buck the opportunity to join the SPARTAN-IV program. To Jun's surprise, Buck declines the offer, feeling that accepting would mean abandoning his team and Dare.[14][15]

February 18

  • It is three days to Margaret Paragoskys birthday, and Serin Osman gifts her a Huragok.[16]

February 19

  • 000 Tragic Solitude begins to research and catalog the myriad Flood forms and reflects on the uncomfortable truth the parasite exemplifies.[17]

February 21

  • Margaret Parangosky turns 92.[18]

February 28

March

Artwork for the Blooding Years
March 2553: The Servants of the Abiding Truth launch an attack on Kolaar Mountain.

March 1

March 2

  • John-117 had a interlace synchronization test scheduled for this date.[13]

March 3

March 16

March 22

  • The UNSC Infinity is launched after receiving its final upgrades with Forerunner technology.
  • Forces loyal to the Servants of the Abiding Truth launch an assault on Vadam, starting the Blooding Years.[24] This attack is eventually repelled by the arrival of the UNSC Infinity. During the battle, Jul 'Mdama's wife, Raia, is killed.
  • Admiral Parangosky approves the deployment of an automated probe delivery craft to Installation 00 using advanced slipspace technology.[25]

April

April 1

  • Jul 'Mdama escapes captivity on Trevelyan via a slipspace portal. He is transported to Hesduros, where he is welcomed by the local Sangheili as a messenger of the gods. Jul uses the locals' religious devotion to his own advantage and the result is the start of a new faction devoted to Covenant ideals.[26]

April 5

  • Kilo-Five returns to Venezia in order to track down the Kig-Yar pirate, Sav Fel, and the insurrectionist, Staffan Sentzke. Serin Osman is promoted to Rear Admiral and a small party is held aboard Port Stanley in her honor by Kilo-Five.

April 14

  • Sav Fel sells the Ket-pattern battlecruiser Pious Inquisitor to Staffan Sentzke, who intends to use the ship to force UEG authorities to provide answers about the disappearance of his daughter many years earlier. Fel demonstrates the ship's capabilities by using its energy projector to glass Forerunner ruins on Shaps III.[27] This causes Line Installation 444-447 to send an automated distress signal to Covert Support Base 4276, located on planet Gao in the nearby Cordoba system. The distress call awakens the support base's archeon-class ancilla, Intrepid Eye, from stasis. After her requests for a status report, Intrepid Eye attempts to launch a reconnaissance drone, triggering a cave-in which cripples Support Base 4276 almost entirely.[28]
  • Vasily Beloi and Malcolm Geffen infiltrate the Venezian militia in order to gather information about Sentzke and Pious Inquisitor. Following a series of suspicious incidents, Sentzke begins to doubt their cover story and has them detained and tortured. Naomi-010 and Lian Devereaux eventually arrive and successfully extract Mal and Vaz. During the rescue, Sentzke is also taken captive aboard Port Stanley.
  • A Kig-Yar crew led by Shipmistress Chol Von tracks down and boards Pious Inquisitor with the intent of seizing the ship for itself. Kilo-Five boards Pious Inquisitor and a skirmish occurs between it and the Kig-Yar. Chol Von eventually has her crew destroy the ship. Staffan Sentzke is presumed dead in the ensuing explosion, but he actually had managed to escape.
  • Several tourists exploring Gao's Montero Cave System find themselves miraculously cured of various illnesses and the caves quickly see an influx of sick people hoping for similar miracle cures.[29] The cures are actually the work of the Lifeworker Huragok Roams Alone, attached to Gao's Support Base 4276.[28]
  • Commander Murtag Nelson, a field analyst at an ONI listening post, takes note of strange transmissions emanating from the Montero Cave System on Gao. Nelson correctly hypothesizes that a Forerunner ancilla is responding to the bombardment on Shaps III. Admiral Parangosky subsequently gives Nelson command of the 717th Xeno-Materials Exploitation Battalion and tasks them with retrieving the Forerunner AI.[27]

May

May

May 6

  • ONI learns the Banished had raided an air base formerly belonging to the Covenant on Kostroda, and that its leader, Atriox, had been captured and taken aboard the assault carrier Enduring Conviction. Twelve hours later, the Enduring Conviction broke formation and contact with the rest of the Fleet of Recalcitrant Ire. The Conviction was hailed and warned by the Fleetmaster Arkad Nar 'Kulul, and then fired upon when it ignored orders. The ship performed evasive maneuvers, returned fire and escaped. Shortly after this, the ship and its crew, led by Let 'Volir, swore fealty to the Banished.[32]

May 7

  • The research and development vessel Argent Moon is commissioned by ONI.[33]

May 14 (approximately)

  • A UNSC task force enters the Cordoba system and requests permission to conduct research in Gao's Montero Cave System. While Gao's planetary government initially denies the requests, President Aponte eventually allows a small research team to land. The UNSC subsequently deploys the 717th Xeno-Materials Exploitation Battalion, along with the attached Blue Team, to the Montero region and declares the caverns off-limits to anyone else.[29]
  • After the UNSC battalion's arrival, several people are found brutally murdered in the Montero Cave System. The murders are the work of the Forerunner ancilla Intrepid Eye, who seeks to generate conflict among the humans in order to force the UNSC to cease its efforts to capture her.[28]

June

June

July

July 4–5, 2553: The Battle of Wendosa.

July 2

July 3

  • Members of Blue Team accompany Lopis and her partner, Cirilo in a search for the missing Halal and Hayes. They arrive at their location and discover their corpses. Fred recovers the fragment of Wendell from Halal's damaged TACPAD and places him in his helmet's data chip. While investigating the scene, Cirilo finds a trail of blood from Roams Alone and the team resolves to follow it.

July 4

  • Intrepid Eye directs Aggressor Sentinels to attack the humans and though they destroy the Sentinels, Cirilo is killed and Olivia-G291's legs are badly wounded. Veta Lopis learns of Gamma Company's unique augmentations and places them, Mark-G313 in particular, at the top of her list of suspects for the murders. The humans are met by Roams Alone, who they agree to take with them back to the surface. The Keepers launch an attack on Wendosa, believing that Intrepid Eye is in the town. The group also dispatches forces into the caverns which come into conflict with Veta and the Spartans.

July 5

  • Fred-104 captures Intrepid Eye with a scramble grenade. The ancilla escapes and is pursued by the UNSC and Keepers alike and is eventually recaptured by he, Olivia, and Ash. Fred boards a UH-144 Falcon with the ancilla but is shot down. Veta Lopis attacks Castor and wounds him before the Jiralhanae can harm Fred. The 717th Xeno-Materials Exploitation Battalion's Alpha Company arrives at their location to fend off the Keepers.

July 6

August

August

September

The Prelate and the Scion.
September 2553: Tem'Bhetek engages Rtas 'Vadum and Tul 'Juran aboard the Shadow of Intent.

September

October

October 14

November

November 23

November 28

  • Luther Mann, while exploring Trevelyan, discovers the location of Installation 07.[41]
  • A pioneer group arrives at Reach to prepare for the planet's eventual reterraforming.[42]
  • The ONI probe delivery drone dispatched in March arrives at Installation 00 and deploys its probes. After initial transmissions confirm the Ark's survival, all of the probes go offline.[25]

December

December 6

December 8

  • The Office of Naval Intelligence sends Veta Lopis' Ferret Team to find her killer and rescue her family.

December 12

December 21

  • Two ONI agents, 'D' and 'S', speculate which are Atriox's motivations after the demise of the Covenant empire.[44]
  • The UNSC commissions the UNSC Rubicon, a ship equipped with state-of-the-art Forerunner slipspace drive technology, remote contact teams and survey drones, for a manned mission to the Ark.[25]
Help.png This section needs expansion. You can help Halopedia by expanding it.

Unknown date

Sources

  1. ^ Halo Wars 2 GAMEPLAY - E3 2016 Interview (Interview with Kevin Grace) - "The Covenant are dead"
  2. ^ Halo: Envoy, Chapter 12
  3. ^ Halo: Initiation, Issue #1
  4. ^ Halo Waypoint - Spartans
  5. ^ Halo Waypoint: Catalog Interaction (Query Answer: Human records indicate transition to noncombatant administrative control [ref: UEG] [January 8, 2553]. No notable adjustment in military [bureaucratic tactical] behavior and scope of authority.)
  6. ^ Halo Waypoint - Halo: Glasslands excerpt, Chapter 2
  7. ^ Jessica Shea Twitter Today in Halo - 1/8/2553
  8. ^ Halo Legendary Crate, Data Drop #8
  9. ^ Halo: Glasslands, page 79
  10. ^ a b Halo: Initiation, Issue #3
  11. ^ Halo: Evolutions - Essential Tales of the Halo Universe, From the Office of Dr. William Arthur Iqbal
  12. ^ Jessica Shea Twitter Today in Halo - 2/1/2553
  13. ^ a b Youtube, Halo: The Master Chief Collection - Wake Up, John
  14. ^ Halo: New Blood, pages 49-55 (Google Play edition)
  15. ^ Twitter: Today in Halo 2/15/2553
  16. ^ Halo: Glasslands, chapter 10
  17. ^ Halo Wars 2, Phoenix Logs — An Uncomfortable Truth Part 1
  18. ^ Halo: Glasslands, chapter 13
  19. ^ Halo Waypoint: Catalog Interaction - Page 14
  20. ^ Halo Legendary Crate, Data Drop #2
  21. ^ Halo 3, campaign level Halo
  22. ^ Jessica Shea's Twitter - Today in Halo: 3/16/2553
  23. ^ Halo: The Thursday War, pages 22-23
  24. ^ Halo: The Thursday War, page 28
  25. ^ a b c Halo: Hunters in the Dark, Chapter 2
  26. ^ Twitter: Today in Halo 4/1/2553
  27. ^ a b Halo: Last Light, pages 22-23 (Google Play edition)
  28. ^ a b c Halo: Last Light, pages 36-39 (Google Play edition)
  29. ^ a b Halo: Last Light, pages 8-10 (Google Play edition)
  30. ^ Halo Mythos, page 128
  31. ^ Halo 4: The Essential Visual Guide
  32. ^ Halo Wars 2, Phoenix Logs — Rise of Atriox III
  33. ^ Halo Waypoint: Argent Moon
  34. ^ Halo: Last Light, pages 5-6 (Google Play edition)
  35. ^ Halo: Last Light, Chapter 28
  36. ^ a b Halo: Last Light, Chapter 28, pages 330-331 (Google Play edition)
  37. ^ a b Halo Waypoint: Catalog Interaction - Page 38
  38. ^ Halo: Shadow of Intent, pages 79-80 (Google Play edition)
  39. ^ Halo: Fractures, "A Necessary Truth"
  40. ^ Halo: Retribution, chapter 4
  41. ^ https://twitter.com/bsangel/status/670658429149540352, Today in Halo
  42. ^ Halo Waypoint - Catalog Interaction (Page 43)
  43. ^ Halo: Retribution Chapter 1
  44. ^ Halo Wars 2 - Phoenix Logs: Rise of Atriox IV
  45. ^ Halo Encyclopedia (2022 edition), page 121
  46. ^ Halo Encyclopedia (2022 edition), page 127
  47. ^ Halo: Escalation - Issue #7
  48. ^ Halo: Reach Legendary Edition - Noble team Statue Instructions
  49. ^ Halo: Escalation - Issue #17
  50. ^ Halo Mythos, p. 132
  51. ^ Halo 4: The Essential Visual Guide - Page 152
  52. ^ Halo: Bad Blood
  53. ^ Halo: Official Spartan Field Manual, page 202
  54. ^ Halo: Official Spartan Field Manual, page 204
  55. ^ Halo Waypoint: Canon Fodder - Tales & Stingers
  56. ^ Halo Encyclopedia (2022 edition), page 462
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