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Events January 27: Series 5: Anvil of ''Halo: The Master Chief Collection'' is launched. March 2: ''Halo: Point of Light'' is released. April 7: Series 6: Raven of ''Halo: The Master Chief Collection'' is launched. June 13: ''Halo Infinite'' is shown at the Xbox & Bethesda Games Showcase with a new A New Generation|trailer. June 23: Series 7: Elite of ''Halo: The Master Chief Collection'' is launched. July 29: ''Halo Infinites Halo Infinite Multiplayer Tech Preview|first multiplayer technical preview begins, focusing on Bot Slayer, the Academy's Weapon Drills, and UI tests. A new version of Halo Waypoint was simultaneously tested. September 24: ''Halo Infinites second multiplayer technical preview begins, focusing on Big Team Battle, Arena Slayer, and the Academy's training mode. October 13: Series 8: Mythic is released for ''Halo: The Master Chief Collection'' as 2020's final season. October 19: ''Halo: Divine Wind'' is released. November 1: ''Halo Waypoint''s "Halo Waypoint#vNext|vNext" update is launched. November 15 *''Halo: Combat Evolved'''s and Xbox's 20th anniversary *The ''Halo Infinite Multiplayer Beta'' and Season 01: Heroes of Reach begin. November 19: ''Halo Infinite'' is gone gold. November 30: ''Halo: Legacy Collection'', a compilation of the comic series ''Halo: Uprising'', ''Halo: Helljumper'' and ''Halo: Blood Line'', is published by Dark Horse Comics. December 7: A new edition of ''Halo Graphic Novel'' by Dark Horse Comics is released. December 8: ''Halo Infinite'' is released, following a delay from its original release dates of Holiday 2020 and Fall 2021. December 14: ''The Art of Halo Infinite'' is released, following its delay from a 2020 release. Sources
Events January 13: Halo services on Xbox 360 are shut down. February 15: ''Halo: The Television Series'' is renewed for a Season 2. March 13: ''Halo: The Rubicon Protocol'' was originally set to be released, before being delayed until April 12th. March 24: "Contact", the first episode of ''Halo: The Television Series'' aired on Paramount+, marking the start of the series' Halo: The Television Series Season One|first season and the start of the show overall. March 29: The ''Halo Encyclopedia (2022 edition)'' was set to release, before being delayed until April 12th. March 31: "Unbound", the second episode of the first season of the ''Halo'' television series, aired. April 7: "Emergence", the third episode of the first season of the ''Halo'' television series, aired. April 12: *''Halo: The Rubicon Protocol'' was set to release on this date, before being pushed back yet again to June 28. * The ''Halo Encyclopedia (2022 edition)'' is released. April 14: "Homecoming (TV Series)|Homecoming", the fourth episode of the first season of the ''Halo'' television series, aired. April 21: "Reckoning", the fifth episode of the first season of the ''Halo'' television series, aired. April 28: "Solace (TV Series)|Solace", the sixth episode of the first season of the ''Halo'' television series, aired. May 3: The second season of ''Halo Infinite''s multiplayer; Season 02: Lone Wolves, is launched. May 5: "Inheritance", the seventh episode of the first season of the ''Halo'' television series, is aired. May 12: "Allegiance", the eighth episode of the first season of the ''Halo'' television series, is aired. May 19: "Transcendence", the ninth and final episode of the first season of the ''Halo'' television series, is aired. June 28: ''Halo: The Rubicon Protocol'' was set to release on this date, before being pushed back for a third time to August 9. August 9: ''Halo: The Rubicon Protocol'' is released. August 16: ''The Official Halo Cookbook'' is released. October 18: ''Halo: Outcasts'' was set to release, before being delayed to 2023#May|May 30, 2023. November 7: ''Vertical Umbrage'' is released on Halo Waypoint. November 8: The Winter Update of ''Halo Infinite''s multiplayer is launched. December 6: ''Halo: Initiation and Escalation'' is released. Sources
Events February 8: ''Winter Contention'' is released on Halo Waypoint. March 7: The third season of ''Halo Infinite''s multiplayer, Season 03: Echoes Within, launches. May 30: ''Halo: Outcasts'' was set to release on this date following a delay from an original release date of 2022, before being pushed back yet again to July 25. June 20: The fourth season of ''Halo Infinites multiplayer, Season 04: Infection, launches. July 25: ''Halo: Outcasts'' was set to be released on this date, before being pushed back again to August 8. August 8: ''Halo: Outcasts'' is released. October 14: ''Sunrise on Sanghelios'' is debuted at the Halo World Championship 2023. October 17 *''Halo: Epitaph'' was set to be released before being pushed back to January 2, 2024. *The fifth season of ''Halo Infinites multiplayer, Season 05: Reckoning, launches. October 31: ''Saturn Devouring His Son'' is released on Halo Waypoint. November 27: ''Battle for the Blood-Moon'' is released on Halo Waypoint. December 6: ''Trial of Reckoning'' is released in Halo Waypoint. Sources
Events January 2: ''Halo: Epitaph'' was set to release on this date following a delay from an original release date of 2023, before being pushed back to February 27. February 6: ''Halo: Battle Born'' was set to be re-released by Simon & Schuster on this date, before being pushed back to March 26. February 8: ''Halo: The Television Series'' Halo: The Television Series Season Two|Season Two is set to be aired on Paramount+. February 27: ''Halo: Epitaph'' is set to be released on this date. March 5: ''Halo: Meridian Divide'' was set to be re-released by Simon & Schuster on this date, before being pushed back to April 30. March 26: ''Halo: Battle Born'' is set to be released on this date. April 30: ''Halo: Meridian Divide'' is set to be re-released on this date. July 30: ''Halo: Empty Throne'' was set to be released by Simon & Schuster on this date, before being pushed back to October 8. August 6: ''Halo: Official Spartan Field Manual'' is set to be re-released by Simon & Schuster. October 8: ''Halo: Empty Throne'' is set to be released. Sources Category:Real-world years
2070 was a year in the 2070s in the 21st century. Events The , designed by Master Shipwright Ckmu 'Raboree, enters service around this time. Sources
2079 was a year in the 2070s in the 21st century. Events According to the fragment Operator of the shattered Artificial intelligence Melissa in 2004, Volume 49 of the ''Journal of Higher Dimensional Physics'' scientific journal was published.''I love bees'', Phase 3 Operator's Monologue Notes Sources
2080 was a year in the 2080s in the 21st century. Events By this year, Earth's nations had put together joint efforts to colonize Luna, Mars, and a handful of other sites in the Sol system, including the Jovian Moons and a number of asteroids. Sources
2090 was a year in the 2090s in the 21st century. Events Humanity concludes a conflict somewhat on par with World War II and the Rain Forest Wars. Sources
|end=November 22, 2021 |numtiers= |totalcost= |games=''Halo Infinite'' |gamelabel=Halo Infinite }} 20th Anniversary, also known as 20 Years of Halo, was a multiplayer event held for ''Halo Infinite''. It was held between November 15 and November 22, 2021 during Season 01: Heroes of Reach, and commemorated the ''Halo universe|Halo'' franchise's 20th birthday. Unlike Fractures: Tenrai, or Cyber Showdown, the event would feature no progression, with players being granted a bundle of items upon logging into ''Infinite'' during the event's runtime. Unlocks {| class"width: 70%;" ! style="width: 20%"|Unlocks ! style="width: 20%"|Images |- align="center" |Armor Coating (Mark VII) |File:HINF Platinum Anniversary Coating Icon.png|100px |- align="center" |Weapon Coating (MA40 Assault Rifle) |File:HINF - Platinum Anniversary coating icon (Weapon).png|100px |- align="center" |Vehicle Coating (M12 Warthog) |File:HINF - Platinum Anniversary coating icon (Vehicle).png|100px |- align="center" |Weapon Charm (Blue Team) |File:HINF Blue Team Charm Icon.png|100px |- align="center" |Nameplate (Assembled) |File:HINF Nameplate Assembled Abstract Flax.png|250px |- align="center" |Nameplate (Fire in Your Heart) |File:HINF Nameplate Fire in Your Heart Silent Gold.png|250px |- align="center" |Nameplate (I Love Bees) |File:HINF Nameplate I Love Bees Tarnished Gold.png|250px |- align="center" |Nameplate Backdrop (Margaret's Honey) |File:HINF Margaret's Honey Backdrop.png|100px |- align="center" |} Gallery File:HINF - Event - 20 Years of Halo - 00001.png|A SPARTAN-IV program|Spartan-IV sliding, utilizing the event's armor and weapon coatings. File:HINF - Event - 20 Years of Halo - 00002.png|A close up view of the MA40 assault rifle|MA40 assault rifle's weapon coating. File:HINF - Event - 20 Years of Halo - 00003.png|A close up view of the MA40 assault rifle's weapon charm. File:HINF - Event - 20 Years of Halo - 00004.png|The "Platinum Anniversary" event coating, used on the M12B Warthog. Sources Category:Halo Infinite events
The year 2100 BCE is a year in the 2100s BCE in the distant past#21st century BCE|21st century BCE. Events In 2100 BCE the century-long War of Wills comes to an end as one thousand Reformists enter the Forerunner Forerunner Dreadnought|Dreadnought and flee the San'Shyuum homeworld Janjur Qom.Halo Encyclopedia (2009 edition), ''page 30'' Sources
2103 was a year in the 2100s in the 22nd century. Events Humanity concludes a conflict somewhat on par with World War II and the Rain Forest Wars. Sources
2129 was a year in the 2120s in the 22nd century. Events The United Nations creates the first iterations of the Orbital Drop Shock Troopers|ODSTs. Sources
2135 was a year in the 2130s in the 22nd century. Events The Design pattern|Kerel-pattern ''Shadow of Intent'' enters service around this time. Sources
2142 was a year in the 2140s in the 22nd century. Events Early 2142 The Covenant discover the Unggoy homeworld, Balaho. The Unggoy surrender almost immediately in the imposing presence of the Sangheili and are incorporated into the Covenant Empire|Covenant. Sources
2152 was a year in the 2150s in the 22nd century. Events Roughly 400 years prior to September 2552 The Sangheili Arbiter Fal 'Chavamee refuses to accept the Covenant Covenant religion|religion and is charged with heresy by the High Prophet of Solemnity. By order of the Prophet, a Sangheili named Haka 'Suukaree attempts to bring Fal to ruin. Haka forces Roh, Fal's friend, to murder Fal's wife, Han. Haka kills Roh shortly after. An army of Sangheili, Kig-Yar, Unggoy, and Mgalekgolo, accompanied by s and s, charges against Fal. Fal kills the entire attacking force. Atop a Forerunner structure, Fal and Haka finally duel. The duel ends with both fighters killed by the other's hand. As a result of Fal's actions, the rank of Arbiter is stripped of its former prestige, and is given only to Sangheili who have brought shame to both themselves and the Covenant until 2552|four centuries later. Sources
2158 was a year in the 2150s in the 22nd century. Events The Frieden movement targets an embassy in the Europan city of Thynia, leveling the structure with military-grade explosives. In response, the United Nations labels the Friedens as Terrorism|terrorists and dispatches United Nations Colonial Advisors|UN colonial advisors to Io to help organize policing efforts. Sources
2160 was a year in the 2160s in the 22nd century. Events March The Jovian Moons Campaign begins: Jovian Frieden secessionist attacks on United Nations colonial advisers on the moon Io lead to three months of fighting between the United Nations military and Frieden forces. Though this is not the first armed conflict in the Sol System, it is easily one of the bloodiest, and is generally considered to be the spark of increased friction and militarization that followed. The conflict escalates tensions, as Earth's national governments, many of which sponsored colonies within the Sol system, begin fighting proxy wars off-planet. As these continue, tensions on Earth mount, leading to a number of armed conflicts on Earth itself. June The Jovian Moons Campaign ends, escalating tensions, as Earth's national governments, many of which sponsored colonies within the Sol system, begin fighting proxy wars off-planet. As these continue, tensions on Earth mount, leading to a number of armed conflicts on Earth itself. Sources
2161 was a year in the 2160s in the 22nd century. Events Late 2161 By this time, the Jovian Moons Campaign had subsided; the bloodshed ceased for several months, and some speculated that the worst had past. Sources
2162 was a year in the 2160s in the 22nd century. Events February The Rain Forest Wars begin with a series of bombings in South America. The United Security Acts of 2162 and Homeland Security Act of 2162 are created. Sources
2163 was a year in the 2160s in the 22nd century. Events November Nadja Mielke, the leader of the Frieden movement, is assassinated on her way to a command center in the Europan city of Pelagon. December The United Nations Space Command is established by the United Nations to eliminate the various rebel organizations in the Sol system. The Argyre Planitia Campaign takes place: In a conflict that stemmed from the Rain Forest Wars, the three primary Earth factions; the UN, Frieden and Koslovics clash again, this time on Mars. A series of lightning strikes against Koslovic forces near the Argyre Planitia marks the first extraterrestrial deployment of UNSC Marine Corps|UNSC Marines. Around 19 months after February 2162 The Rainforest Wars ends. At the close of the Rainforest Wars The Battle of Delambre occurs. Sources
2164 was a year in the 2160s in the 22nd century. Events January The Interplanetary War officially begins. United Nations|UN-sponsored military forces begin a pattern of massive build-ups, culminating in the first real interplanetary war. After the successful UNSC Marine Corps|Marine Argyre Planitia Campaign|deployment on Mars, recruitment drives and propaganda tactics strongly bolster the nascent United Nations Space Command forces. The military novel ''A Soldier's Tale: Rainforest Wars'' is first published. Sources
2165 was a year in the 2160s in the 22nd century. Events The UN Genetic Rights Act, the predecessor to the UN Colonial Mortal Dictata, is extended to the Human colonies#Interplanetary age|interplanetary colonies this year. It is enacted to prevent abuses by gene tech corporations conducting research outside Earth's legal jurisdiction. Sources
2166 was a year in the 2160s in the 22nd century. Events The Mars Campaign concludes after two full years, ending with the eradication of all Martian Koslovics|Koslovic opposition. Sources
2167 was a year in the 2160s in the 22nd century. Events August Vladimir Koslov and his family are killed in a bombing near Lake Autolycus on Luna. Sources
2170 was a year in the 2170s in the 22nd century. Events March The Callisto Treaty is signed. The Frieden and Koslovics formally surrender to the United Nations Space Command|UNSC, officially ending the Interplanetary War. With this treaty the Unified Earth Government becomes a full-fledged governing entity in the wake of the conflicts. Now, the victors are forced to deal with a less obvious but equally serious threat: overpopulation and a massive military with no enemy to fight. Overpopulation caused by massive population surges in the post-war period, combined with the destruction and famine bred by the Rain Forest Wars, threaten to destabilize the economy in the coming years. Sources
The 21st Marine Division was a UNSC Marine Corps unit during the Insurrection and the Human-Covenant War.Halo: Contact Harvest, ''page 111'' Its M-EDF 9/21/1|First Battalion was commanded by Lieutenant Colonel|Lt. Colonel Ponder. List of appearances ''Halo: Contact Harvest'' Sources Category:UNSC Marine Corps units
The 21st Scout platoon was a UNSC Marine Corps platoon stationed on Draetheus V. Operational history The Marines of the 21st took significant losses during the Battle of Draetheus V, however, the Marines managed to uncover a set of promising coordinates regarding the locations of the Covenant officers leading the attack. This allowed Sarah Palmer to located the officers in 30 minutes rather than days.Halo: Spartan Assault, ''Mission 8: Hunt for the Sangheili Command|Hunt for the Sangheili Command'' List of appearances ''Halo: Spartan Assault'' Sources Category:UNSC Marine Corps platoons
|branch=UNSC Marine Corps |type=Special operations |role= Assault |size=About 800 personnel |nicknames= Black Daggers |battles= Battle of Biko Operation: SILENT STORM *Battle of Seoba *Attack on Zhoist |commanders= Colonel Marmon Crowther }} The 21st Space Assault Battalion (21st SAB/ODST), also known as the Black Daggers, is a veteran battalion of the Orbital Drop Shock Troopers, a special operations capable reconnaissance force of the UNSC Marine Corps. Unlike most ODSTs, the Black Daggers receive special training and equipment for zero-gravity operations. Overview Colonel Marmon Crowther - Battalion CO (Dagger Actual) - KIA 04/15/2526 Captain Zelos Cuvier - Alpha Company CO - KIA 03/18/2526 Lieutenant Nelly Hamm - Alpha Company, First Platoon CO (Later Captain, Cuvier's replacement) Lieutenant Nolan Connor - Alpha Company, First Platoon CO (after Hamm ascended to Alpha Company CO) History The 21st Space Assault Battalion has a long history of Insurrection|combating Insurrectionists. In 2525 alone, the Black Daggers stormed and captured eighteen insurrectionist facilities, in locations ranging from low planetary orbit to deep transitional space. At some point prior to 2526#March|March 2526, they led a raid on a United Rebel Front-controlled supply depot at Bomogin, capturing it before the rebels even knew they were there. By 2526#March|March 8, 2526 they were assigned to Captain Halima Ascot's Task Force Yama for the duration of Operation: SILENT STORM, a mission with the goal of stealthily Naval boarding|boarding and destroying as many Covenant vessels as possible and buy time for Human|humanity. At this time, the battalion was led by Colonel Marmon Crowther. Although Captain Ascot had full authority over the task force, once the ODSTs and the complement of twelve SPARTAN-II program|Spartans were deployed, command would transfer to Colonel Crowther. During the slipspace journey to Biko, Staff Sergeant Avery Johnson began working with the Black Daggers as they trained against the Spartans. At first, the marines proved to be no match for the Spartans, but that all changed when Johnson introduced some new, unorthodox strategies. He began spending the "lives" of his men like coins, buying opportunities to deal hard blows to the Spartans. This was a tactic that no sane UNSC commander would utilize except in the most dire circumstances, but it was one that the Covenant was known to use often. While the Spartans continued to outclass the individual ODSTs, victory was no longer certain when facing large numbers who now knew how to coordinate an effective assault. Four days into the training, Colonel Crowther had the entire battalion of Black Daggers gather to be briefed on his plan to board and destroy Covenant vessels. The Spartans would be split up, with each of the twelve being assigned to a single platoon. They would be the ones carrying the nukes. However, John-117 disagreed with this plan and Johnson backed him up. Ultimately the plan would change to one more suited to the Spartans' skills. Upon arriving in the Kolaqoa system on 2526#March|March 18, Task Force Yama set course for Seoba and Seoba Ice Quarry|the abandoned ice quarry that had been selected to house their prowlers until the Covenant arrived. Eager to not waste time that could be used for training, Colonel Crowther decided that the Black Daggers and John-117's Spartans would practice a full-scale landing into the quarry, dubbed Operation: ICE DANCE. With the drop bays of the task force's s packed full with forty-two ODSTs each, it would take time for them all to be deployed into the moon's low gravity, which would have each platoon strewn across a thirty-kilometer area unless they slowed down. Because of the Spartans' seeming lack of experience, Crowther also had each of them at the back of the drop bays, making them the last to deploy and in the absolute worst position to provide support, according to John's assessment. While on approach, Task Force Yama intercepted COM|communications from the Biko Independence Army, revealing that they were in the process of preparing a coup against Biko's chancellor and that these insurrectionists were presently occupying the very same quarry that they were approaching. With the doing its best to block any transmissions from the moon, Crowther announced to his men that Operation: ICE DANCE was no longer a drill and that their insertion would likely be hot. He also ordered them to eliminate any communications equipment that they came across while on the ground, in the event that the insurgents had found a way around the jamming. For operational security, all Black Daggers would identify themselves as members of the Chancellor's Guards to any insurrectionist captives. Once the prowlers reached their designated drop off zones and began deploying off their infantry complement, the entrenched insurrectionists tore into the ODSTs with M41 Vulcans. As Lieutenant Nelly Hamm of Alpha Company's First Platoon was busy tending to a wounded trooper he had handed her, John-117 disobeyed orders and leapt from the to face the insurgents head-on, with the rest of Blue Team following his lead. They softened up the insurrectionists enough for many of the Black Daggers to deploy safely. Ghost Flight managed to disable the enemy's communications center in their attack run, but the Spartans soon had to focus on preventing them from repairing it to call for reinforcements. As a form of payback for disobeying orders, Lieutenant Hamm tricked the Spartans into being a distraction so that her men could stop the insurgents from repairing the relay themselves. With the relay permanently disabled and enough ODSTs safely deployed, the ice quarry soon fell under UNSC control. During the battle, Captain (UNICOM)|Captain Zelos Cuvier, the commanding officer of the Black Dagger's Alpha Company, was killed, resulting in Crowther promoting Lieutenant Hamm to the rank of captain and the new commanding officer of Alpha Company. By the time the battle came to a temporary halt, 127 Black Daggers had been killed. The very next day, Crowther's men had repurposed the quarry's Assembly Chamber 4L430 for an informal debriefing led by Captain Ascot. A UNSC flag was hung on the chamber's polycrete-coated walls, with portable standing lights and a folding conference table also set up for the debriefing. Along with Captain Ascot and Colonel Crowther, the meeting also included Lieutenant Commander Hector Nyeto of Ghost Flight, now-Captain Nelly Hamm, Avery Johnson, John-117, and Catherine Halsey|Dr. Catherine Halsey. Here, they discussed the difficulties with the previous day's battle, particular those faced by Alpha Company. They had suffered a thirty-two percent casualty rate and lost their captain, while the rest of the battalion only saw a loss of six percent of their men and did not lose a single captain. After John's maverick action aboard the ''Ghost Song'' came up, the discussion turned to the young Spartan's age. Ultimately, the truth was revealed that John and his fellow Spartans were all around the age of fifteen, and Crowther refused to send them into battle again as a result. The conversation then turned to why the insurrectionists had seemingly been ready for their arrival, with John realizing and convincing the others that they had instead been waiting for the Covenant, with the intent to meet them for negotiations and to perhaps form an alliance. While they were planning for the Covenant's inevitable arrival, Bloodstar Flotilla|a flotilla of the alien ships appeared in-system and set course for Seoba. The other UNSC leaders then rushed out of the chamber to ready their forces for the imminent continuation of the battle, as Crowther remained where he was to talk with John. He assigned the Spartans to guard and load the captured insurrectionists into Emmeline|a transport as the Black Daggers mobilized to ambush the Covenant. Only minutes later, most of the battalion had boarded the prowlers of Task Force Yama and launched from Seoba. Captain Ascot's and the other vessels of Night Flight had just received the last company of Black Daggers when the Covenant flotilla began bombarding the quarry. Ascot ordered the prowlers to launch immediately, but the ''Starry Night'' was struck on takeoff, causing it to crash into the quarry wall. Only Staff Sergeant Johnson and four Black Daggers survived the crash, and they were unable to radio their status to the rest of the task force. The ODSTs aboard the other prowlers of Night Flight were eager to search for survivors, but Colonel Crowther turned down their offer, not wanting to lose more men by sending them into the orbital bombardment. John-117 decided that he and his Spartans would check on the status of the ''Starry Night'' instead, once they finished their task of moving the prisoners. The Spartans ventured out into the ice quarry and reached the prowler to find Worthy Silence|a single Covenant intrusion corvette securing it for recovery. Despite numerous setbacks, a team led by Frederic-104 managed to board the ''Starry Night'', secure Johnson and the ODSTs, arm the vessel's Fury tactical nuclear weapon|nuke, and flee with the survivors in an escape pod. The Nuclear weapon|nuclear explosion destroyed both the ''Starry Night'' and the looming corvette. On 2526#March|March 20, the cremated remains of the Black Daggers and prowler crews that had been killed during the events of the previous two days were placed into two-hundred-and-three gray interment capsules and taken to the ''Vanishing Point''s command Hangar bay|hangar. With an honor company of one-hundred-and-one officers and one-hundred-and-one enlisted personnelincluding a number of Black Daggers and six Spartansin attendance, Ojombo|a chaplain led a funeral service in honor of the fallen. After she gave an emotional speech about the honor of service and sacrifice, the chaplain stepped aside for Lieutenant Commander Nyetonow the de facto commander of Task Force Yama after Ascot's deathto deliver his Committal speech. Nyeto had Staff Sergeant Johnson ceremoniously call the honor company to attention, order the AlON pressure barrier|pressure barrier be raised, and direct the hangar's exterior to hatch be opened, thus allowing the interment capsules to be swept out into deep space. As this occurred, Nyeto recited his speech, having Johnson order the hatch closed and dismiss the company afterward. Only a handful of senior officers and the Spartans stayed behind after the service to hear what their new commander had planned as their next move. Nyeto approached John-117, complementing him on what he and his compatriots had accomplished the day prior. When John asked if he would reconsider sidelining them due to their age, Nyeto promised that they would be seeing all the action that they could handle for the rest of the operation. Hearing this, Colonel Crowther strode forward and told him that that decision was not his to make as the Spartans still reported to him. However, Nyeto reminded the colonel that he now reported to ''him'', and that they needed the obvious talents of the Spartans. This argument continued until Crowther threatened him with a report to a UNSC board of inquiry. At that, Nyeto relented and promised to run their next ambush by the book, with only the Black Daggers participating in the mission. As everyone departed from the hangar in a shocked silence, Crowther sought out Johnson and walked with him back to the Black Daggers' quarters. The staff sergeant warned Crowther that his disagreement with Nyeto was not a "pissing match" he was going to win. It had been decided far above the colonel's pay grade that the Spartans were ''not'' children and that they were the right fit for the mission. Crowther actually agreed with this sentiment, saying that the Spartans had saved them at Seoba and that they were ready for battle. Still, he revealed to Johnson that he was suspicious of Nyeto and his strange attitude toward the Spartans. It had seemed like Nyeto purposefully stalled in supporting them during the previous day's battle. As such, Crowther wanted to keep the Spartans away from Nyeto until he figured out what was going on. To this end, he informed Johnson that he was sending him and the Spartans on Battle over Etalan|a mission to sabotage the Covenant's supply chain at Etalan while most of the task force and the Black Daggers stayed at Biko. Later that day, the Fleet of Inexorable Obedience|expected Covenant fleet of about one hundred warships arrived at Biko and prepared to assault the planet. As planned, Task Force Yama deployed with the Black Daggers in tow, hoping to insert the ODSTs onto as many vessels as possible. However, the Covenant had learned of their plan, and expected the Spartans to board their warships, as they Battle of Chi Ceti|had Skirmish over Netherop|done with the ''Unrelenting'' and ''Radiant Arrow''. To try to prevent this, they kept a tight fighter screen around their capital ships so that no prowlers could easily slip past. This forced Colonel Crowther to delay all boarding actions until an opportunity presented itself. Meanwhile, the Covenant fleet accelerated toward Biko's meager navy, showing no signs of slowing down. The space battle over Biko lasted for five days, and during that time, Task Force Yama attempted to deliver members of the Black Daggers to at least one vessel of the Covenant fleet. When a detachment of Black Daggers attempted to board the ''Purifying Flame'', they were captured before they could destroy the warship. Mind melters were ordered to interrogate the ODSTs, though they saw little success. Their extreme resistance to interrogation lead to them being handed over to Castor|two Orsun|particular Jiralhanae to get information out of them their way. The Jiralhanae played a "game" they called "tossers" with the ODSTs; this involved tearing the limbs off of some of the captives in such a way that it would not kill them immediately, requiring their companions to help them eat, drink, and eliminate. However, before they ran out of prisoners, all the Jiralhanae could get out of them was the names of the twelve Spartans attached to their battle group, the name of the battle group, as well as the name of the battalion in which the ODSTs serve. After Operation: SILENT STORM, the remaining members of the battalion were dispersed to train other units. As a result, during Operation: OBLIVION, Admiral Cole didn't have anyone available to send with Blue Team and instead had to rely on regular infantry Marines.Halo: Oblivion, ''page 64'' Equipment Due to the nature of their usual deployments, members of the 21st Space Assault Battalion are issued a space-assault variant of ODST armor, which is vacuum-sealed for use in extra-vehicular activity|extra-vehicluar operations in space, such as boarding actions. The armor is also shielded against the effects of electromagnetic pulses. List of appearances ''Halo: Silent Storm'' ''Halo: Oblivion'' ''Halo: Outcasts'' Sources Category:Orbital Drop Shock Trooper units
The year 2200 BCE is a year in the 2200s BCE in the distant past#22nd century BCE|22nd century BCE. Events The year 2200 BCE saw a major turning point in the history of the San'Shyuum (Prophets). After centuries of unity the San'Shyuum become divided into two groups, the Stoics who believe that Forerunner relics were sacred and not to be altered, and the Reformists who wish to more closely examine the artifacts and use them for their own purposes. This fundamental disagreement sparks the War of Wills.Halo Encyclopedia (2009 edition), ''page 114'' Sources
2204 was a year in the 2200s in the 23rd century. Events The Unified Earth Government gains full autonomy in an effort to maintain Earth's power across numerous interplanetary Human colonies|colonies. Sources
2215 was a year in the 2210s in the 23rd century. Events April 20 Wallace Fujikawa is born. He will later become the co-creator of the Shaw-Fujikawa Slipspace Drive. Sources
2220 was a year in the 2220s in the 23rd century. Events January 20 Tobias Fleming Shaw is born - the co-creator of the Shaw-Fujikawa Slipspace Drive. Sources
2291 was a year in the 2290s in the 23rd century. Events April A group of researchers headed by Tobias Shaw and Wallace Fujikawa secretly developed the Shaw-Fujikawa Translight Engine, a practical means of propelling spacecraft across vast interstellar distances. Sources
|branch= |type= |role=Planetary defense |size= |nicknames= |battles= |commanders= }} The 22nd First Response Wing is a UNSC SS-1000 Sabre unit, stationed on an unknown world. Composition The 22nd makes use of SS-1000 Sabres. List of appearances ''Halo Infinite'' Sources Category:UNSC military units
The 22nd Infantry Division is an infantry division of the UNSC Army.''Halo: Spartan Assault'', ''Halo: Spartan Assault/Quotes|Quotes'' Overview At some point, members of the 6th Airborne Division encountered Flood. Personnel Staff Sergeant Lillian Bonelli List of appearances ''Halo: Spartan Assault'' Sources Category:UNSC Army units
22nd Tactical was a UNSC Marine Corps unit stationed aboard the . Its members were ordered to rendezvous with 14th Platoon at Bulkhead Charlie 14 as the ''Autumn'' came under attack by the Covenant.''Halo: Combat Evolved'', campaign level, Pillar of Autumn (Level)|Pillar of Autumn List of appearances ''Halo: Combat Evolved'' ''Halo: Combat Evolved Anniversary'' Sources Category:UNSC Marine Corps units
23 Librae is a system with at least two planets, Madrigal and Hesiod. Hesiod is the only gas giant orbiting 23 Librae. Madrigal, the only planet in 23 Librae's habitable zone,Halo: The Cole Protocol, ''pages 155-158'' was a human Outer ColonyHalo: The Cole Protocol, ''page 13'' until the Covenant arrived and glassed the planet in 2528.Halo: The Cole Protocol, ''page 72'' History Madrigal was colonized by humanity, serving as a thriving human colony. It was glassed by the Covenant in 2528. Survivors of the attack fled to the Trojan asteroids trailing the gas giant Hesiod, farther out-system. There, they joined Insurrectionists in the asteroid colony known as the Rubble.Halo: The Cole Protocol, ''page 11'' Kig-Yar merchants established trade relations with the humans in the asteroids while the Covenant plotted to raise an army of Unggoy on Hesiod's moon Metisette. Both the Rubble and the Covenant installation on Metisette were destroyed in the Battle of the Rubble and the Battle of Metisette.Halo: The Cole Protocol, ''page 311'' However, the human inhabitants of the Rubble managed to escape on Habitat Exodus with the help of the and Gray Team while the Covenant forces were completely wiped out by the ''Midsummer Night''. Known planets Madrigal Hesiod *The Rubble *Metisette List of appearances ''Halo: The Cole Protocol'' ''Halo 2: Anniversary'' *''Terminal (Halo 2: Anniversary)|Terminals ''Halo: Envoy'' ''Halo: The Television Series'' *''Contact'' *''Unbound'' *''Emergence'' Sources Category:Planetary systems
2302 was a year in the 2300s in the 24th century. Events New Mombasa is selected as Earth's first city to have a space tether: the Mombasa Tether|New Mombasa Orbital Elevator. Sources
2310 was a year in the 2310s in the 24th century. Events The first improved Shaw-Fujikawa Translight Engines begin production. The Unified Earth Government unveils the first in a line of colony ships; given conditions on Earth are deteriorating in the face of overpopulation, hitching a ride out to a colony becomes a highly attractive option. Additionally, the Earth government plans to attach military personnel to each colony, to help better utilize the massive (and expensive) standing fleets. Because Shaw-Fujikawa Translight Engine|FTL travel is still fairly new and expensive, colonists and military personnel face a stringent regimen of physical and mental testing. In theory, only the best-qualified citizens and soldiers are allowed to colonize "nearby" worlds. This is the birth of the Inner Colonies; typically, the Inner Colonials are considered the most elite, best, and brightest. The Colonial Administration Authority and the Colonial Military Authority are established as the administrative and military bodies for Earth's colonies, respectively. The Committee of Minds for Security holds a session, discussing the likelihood of hostile extrasolar civilizations and the modeling of first-contact scenarios to deal with such threats. The Lekgolo Colony|Elo Kadu Baqzo and Ndo Kadu Baqzo are born on Rantu. The M9 fragmentation grenade enters service. Sources
2313 was a year in the 2310s in the 24th century. Events January 14 The International Society of Civil Engineers complete construction of the Quito Space Tether in Quito. Sources
2315 was a year in the 2310s in the 24th century. Events The UNSC Convention on Admiralty Law of 2315|UNSC Convention on Admiralty Law takes place in this year. The ORION Project Phase 1 started under Doctor Ritsa Shephard. Sources
2317 was a year in the 2310s in the 24th century. Events November 10 Tobias Fleming Shaw, the co-creator of the Shaw-Fujikawa Slipspace Drive, dies at the age of ninety-seven. Sources
2318 was a year in the 2310s in the 24th century. Events February 18 Wallace Fujikawa (the co-creator of the Shaw-Fujikawa Slipspace Drive) dies at the age of one hundred-two. Sources
2319 was a year in the 2310s in the 24th century. Events AMG Transport Dynamics designs the first M12 Warthog prototype, dubbed the "Z-12". The Z-12 prototype vehicles quickly prove to be popular due to a well-crafted advertising campaign and adept engineering team. ''These are events that are based around this year, and may not fall on this year specifically.'' Within the first eight months of the Z-12 prototype's existence Within the first eight months of the Z-12 prototype's existence. AMG receives over three dozen exclusivity contracts. Most of these contracts come from the Colonial Military Authority. Sources
2320 was a year in the 2320s in the 24th century. Events June 21 The Sequence Zero deliverables of ORION Project Phase 1 were completed. Sources
2321 was a year in the 2320s in the 24th century. Events April 13 The ORION Project is first initiated. Around this year, AMG Transport Dynamics works with the CMA and established a deal to cover all of their land-based transportation needs. The Z-12 became integrated into the M12 Warthog. In addition, a pneumatically-powered swivel mount and armored body panels were added to the vehicle. Sources
2325 was a year in the 2320s in the 24th century. Events The first phase of the ORION Project is officially put on standby and its staff are reassigned elsewhere. Sources
2329 was a year in the 2320s in the 24th century. Events The M12 Warthog|M12 FAV becomes the most common all-terrain vehicle in service with the UNSC, closely followed by the Mongoose (fiction)|Mongoose and Civet vehicle lines that were also produced by AMG Transport Dynamics. CMA personnel begin to refer to the M12 as the "Warthog". Sources
2332 was a year in the 2330s in the 24th century. Events August 22 The San'Shyuum Hod Rumnt, the future High Prophet of Mercy, is born. The Ross-Ziegler Blip is discovered by two Earth geologists. Sources
2349 was a year in the 2340s in the 24th century. Events Esil Boesis forms the Mols'Desias|Mols'Desias Union of over a dozen fragmented private mining groups in the Sol system. Sources
2362 was a year in the 2360s in the 24th century. Events January 1 Laden with troops and terraforming gear, the ''Odyssey'' embarks on its journey to the Epsilon Eridani system, becoming the first human interstellar colony ship ever launched by the Unified Earth Government|UEG. This sparks the first wave of human expansion beyond the confines of the Solar System. The ''Odyssey'' arrives at the Epsilon Eridani system and spearheads the colonization of a new world, Reach. Ixion (Sol system)|Ixion becomes the final chartered colony in the Sol system. The Committee of Minds for Security holds a working session to design feasible models for first-contact scenarios with potentially hostile extraterrestrial intelligences. The is built in orbit of Mars around this year. It is one of nearly a hundred colony ships to launch from Luna to colonise new worlds, igniting what would become known as the Domus Diaspora. Sources
2364 was a year in the 2360s in the 24th century. Events July 24 The claims to have begun the colonization of Tribute in the Epsilon Eridani system on this date. August 8 The begins colonizing Tribute, which is officially recognized by the Unified Earth Government. Sources
2365 was a year in the 2360s in the 24th century. Events Casmir is established as a UEG Human colonies|colony in the Zufor system. Miridem is established as a UEG colony in the Rampart system. Sources
2366 was a year in the 2360s in the 24th century. Events Minister (planet)|Minister is established as a UEG human colonies|colony in the Xiuquan system. Tantalus is established as a UEG colony in the Tantalus system. Sources
2369 was a year in the 2360s in the 24th century. Events Harmony is established as a UEG colony in the Hellespont system. Iota is established as a UEG colony in the Sigma system. Sources
2370 was a year in the 2370s in the 24th century. Events Barrier is established as a UEG colony in the Chittor system. Fumirole is established as a UEG colony in the Volanus system. Sources
2371 was a year in the 2370s in the 24th century. Events Sigma Octanus IV is established as a UEG human colonies|colony in the Sigma Octanus system. Sources
2373 was a year in the 2370s in the 24th century. Events Ballast is established as a UEG human colonies|colony in the Kennewick system. Greydowns is established as a UEG colony in the Sefton system. Sources
2375 was a year in the 2370s in the 24th century. Events Charybdis IX is established as a UEG human colonies|colony in the Charybdis system. Sources
2376 was a year in the 2370s in the 24th century. Events Sargasso is established as a UEG human colonies|colony in the Portland system. Sources
2377 was a year in the 2370s in the 24th century. Events Dryad is established as a UEG human colonies|colony in the Carson system. Ixion is established as a UEG colony in the Lapith system. Sources
2379 was a year in the 2370s in the 24th century. Events New Carthage is established as a UEG human colonies|colony in the Carthage system. Sources
2380 was a year in the 2380s in the 24th century. Events Erdenet is established as a UEG human colonies|colony in the Erdenet system. Imber is established as a UEG colony in the Salisbury system. Jastolo is established as a UEG colony in the Fieldgreen system. Mesa is established as a UEG colony in the Gateway system. Sources
2381 was a year in the 2380s in the 24th century. Events The Assembly Majority makes a suggestion to the Committee of Minds for Security that The Assembly should relay their ideas to humanity indirectly, due to the risk of humans ignoring them if they presented them outright. Sources
2388 was a year in the 2380s in the 24th century. Events Kuushan Shipyards introduces the into service throughout the UNSC Navy, CMA Navy and other groups. Sources
2389 was a year in the 2380s in the 24th century. Events The human Human colonies|colony of Actium is established in this year. while the 2022 edition of the ''Halo Encyclopedia (2022 edition)|Halo Encyclopedia'' lists Actium's colonization in 2389. As the ''Halo Encyclopedia'' is meant to be definitive and the 2389 date moves Actium's colonization to fit in with the first wave of colonization (alongside other Inner Colonies) that ended in 2390, the 2389 date is assumed to be correct.}} Notes Sources
2390 was a year in the 2390s in the 24th century. Events The colonization of the Inner Colonies is fully underway. There are 210 human-occupied worlds in various stages of terraforming, and the population burden across human-controlled space is largely stabilized. Sources
2395 was a year in the 2390s in the 24th century. Events The MA5 series of assault rifle enters service with the United Nations Space Command. Sources
2396 was a year in the 2390s in the 24th century. Events March 15 Ord Casto, the future High Prophet of Truth, is born on ''High Charity''. Sources
The 23rd Armored Cavalry was a UNSC Army unit. Operational history During the Battle of Draetheus V, there were several lofty bridges spanning an enormous gorge called the Epsilon Expanse which allowed for access to the southern plateau where the majority of Covenant landing zones were located. The Covenant quickly secured these bridges and held UNSC forces at bay with Emp'seam-pattern Antlion|heavy artillery. Sarah Palmer escorted the 23rd Armored Cavalry to the Epsilon Expanse, but the Scorpion tanks would not have survived the guaranteed heavy artillery fire. Palmer took a small team of UNSC Marine Corps|marines across one of the bridges. Palmer managed to infiltrate the Covenant camps and destroy several artillery turrets, giving the Scorpions the chance to advance and launch a counter-offensive.Halo: Spartan Assault, ''Mission 9: Battle for Epsilon Expanse'' With the Covenant's southern forces exposed, Palmer and the 23rd Armored Cavalry's massive column of Scorpions and Grizzlys rushed across the Red Slate plateau on a collision course with several Covenant tank battalions. Only a UNSC counter-offensive would prevent Faraday Base from being crushed between the northern and southern front. The 23rd had brought eighty-six vehicles to Draetheus V. After the battle at Red Slate, there were only eight functioning vehicles left.Halo: Spartan Assault, ''Mission 10: Battle at Red Slate'' List of appearances ''Halo: Spartan Assault'' Sources Category:UNSC Army units
The 23rd Naval Air Squadron is a squadron comprised of pilots from the UNSC Navy and the UNSC Marine Corps.Halo: First Strike, Chapter 6, ''page 49'' (2003 paperback); ''page 67'' (2010 paperback) Background Several members of this unit, if not the entire unit, were aboard the in 2552#August|August 2552. Members of the squadron were adept at piloting several types of air vehicles, including Dropship 77-Troop Carrier|D77-TC Pelicans, GA-TL1 Longsword-class Interceptor|GA-TL1 ''Longsword''-class interceptors, and even captured Covenant Empire|Covenant Dextro Xur-pattern Spirit|''Spirit''-class dropships. When the ''Pillar of Autumn'' crashed on the surface of Installation 04, some of the pilots survived, though all of them were later killed. It is unknown if any members of the squadron were assigned elsewhere or if the squadron is still in service. Roster Known members of the 23rd Naval Air Squadron: Captain Carol Rawley|Carol "Foe Hammer" Rawley - Killed in action|KIA Frye - KIA Lieutenant Rick Hale - KIA Lieutenant Peterson|"Cookie" Peterson - KIA Petty Officer, Second Class Sheila PolaskiHalo Legendary Crate, ''Halo Legendary Crate/Data Drops|Data Drop #10'' - KIA Flight Officer Mitchell - KIA Crew Chief Cullen - KIA List of appearances ''Halo: Combat Evolved'' ''Halo: The Fall of Reach'' ''Halo: The Flood'' ''Halo: First Strike'' Sources Category:UNSC Marine Corps units Category:UNSC Navy units
24 Hours of Quezon was a motorsport event hosted in the city of Quezon on the human Inner Colony of Reach. AMG Transport Dynamics' prototypes and "RallyHog" models have won class victories in the event. 24 Hours of Quezon was one of the events that was a part of humanity's high-stakes interstellar motorsports league, along with the New Carthage Sprint Series. The event was likely suspended indefinitely when Reach was Glassing|glassed by the Covenant in the 2552|summer of 2552. Sources Category:Sporting events
2400 was a year in the 2400s in the 24th century. Events Late 2400 The East African Protectorate's initiated a number of nationalization initiatives including the construction of numerous water purification facilities; which eventually lead to the Mount Kilimanjaro Water Plant near Mount Kilimanjaro. Sources
}} 05-2401 Penitent Tangent was the monitor of Halo Array|Halo Installation 05. Biography 2401 Penitent Tangent, as well as the other six monitors, was present at the dispersion of the activation index|activation indexes prior to the firing of the Halo Array|Halo weapons near the end of the Forerunner-Flood war. Penitent Tangent was charged with regularly scheduled communications with the other Halo array monitors for updates. Several millennia after the rings were fired, though, he ceased sending these messages. Penitent Tangent was the last monitor to send a message to 343 Guilty Spark on Installation 04, though Guilty Spark described his final messages as "incomplete and quite perplexing," and logged his concerns about Penitent Tangent's ability to perform his duties, believing he had not been functioning correctly for some time before his messages ceased.Halo: Combat Evolved Anniversary Terminals, Terminal 4 These reports were recieved by the Edom Terminal\Juridical on Mars, and later noted by Catalog around the 2558. At some point, Unidentified ancilla (Installation 05)|another artificial intelligence construct warned 2401 Penitent Tangent of a pending outbreak in one the installation's Flood Flood containment facility|containment facilities. The monitor continued to ignore this warning, and those that followed, for millennia. Within 2552|99,779 years, the containment facility had been overrun by the Flood, with lockdown protocols in effect within the Halo's teleportation grid to prevent further infestation. By around the year 93 BC, the Edom Terminal\Juridical had received an incomplete Cold Storage Reports|report filed by an ancilla on Delta Halo (presumably the same as the aforementioned), and responded in kind by requesting that the Delta Halo ancillae continue the correspondence through properly-secured channels. These events were also noted by Catalog in 2558. Eventually, the Quarantine Zone was established and the full force of the installation's Sentinels and Enforcers was mobilized. By 2552#November|November 2, 2552, 2401 Penitent Tangent had been captured by the Flood and was held captive by the Gravemind that had manifested on Installation 05. After the battle on the ring had raged for some time, the Gravemind absorbed and reanimated the Prophet of Regret, one of the Hierarchs of the Covenant. Later, SPARTAN-II program|Spartan John-117 and Arbiter Thel 'Vadamee were also captured by the Gravemind. Upon seeing John, a Reclaimer, the monitor urged the Spartan to activate the ring. This was immediately objected to by Regret, who insisted that nothing could be done until he had completed his sermon in preparation for the Covenant religion|Great Journey. The monitor countered that the installation had a firing record of 1.2 trillion simulated, and one actual thus making the ring fully prepared to fire on demand. The Hierarch then retorted that the "Oracles" were the most worthless artifacts that had been left by the Forerunners, prompting the monitor to berate Regret for his lack of regard for protocol. Amid the argument, the Gravemind insisted that the four factions represented in the meeting shared a common goal: preventing the ring from being activated. Shortly thereafter, the Gravemind used the monitor's control of Installation 05's teleportation grid to send the Spartan to ''High Charity'' and 'Vadamee to Halo's Control Room (Installation 05)|control room, respectively, in an attempt to stop the activation of the Halo array. The current status of 2401 Penitent Tangent is unknown. Trivia 2401 Penitent Tangent was voiced by John Michael Higgins. Like all monitors, 2401 Penitent Tangent's numerical designation is derived from seven raised to one less than the number of his installation (7n-1). This is one of Bungie's numerous references to the number seven in the ''Halo'' series. "Penitent" means ''feeling or expressing sorrow for sin or wrongdoing and [being] disposed to atonement and amendment''" and is synonymous with "repentant". "Tangent" is part of the idiom "off on a tangent", which refers to ''digressing suddenly from one course of action or thought and turning to another''. 2401 Penitent Tangent appears in the ''Halo 2'' multiplayer map ''Backwash''. He hovers around the map and is invulnerable to damage. Gallery File:PT2401.JPG|Penitent Tangent in ''Halo 2''. File:PenitentTangentCEA.jpg|2401 Penitent Tangent in one of his garbled transmissions to 343 Guilty Spark. File:H2_Backwash_2401PT.jpg|2401 Penitent Tangent on Backwash. File:H2-2401PenitentTangent.png|A cutout of Penitent Tangent. File:2401 Penitent Tangent Render.png|A render of Penitent Tangent. File:H2-2401PT-J117.jpg|2401 Penitent Tangent addresses John-117 in ''Halo 2''. File:H2AChief&2401.png|2401 Penitent Tangent and John-117 in ''Halo 2: Anniversary''. File:H2A2401&Regret.png|2401 Penitent Tangent arguing with an infected Prophet of Regret. File:Enc22 PenitentTangent.png|Artwork of Penitent Tangent in the ''Halo Encyclopedia (2022 edition)''. List of appearances ''Halo 2'' ''Halo 3'' *''Bestiarum'' ''Halo: Combat Evolved Anniversary'' *''Terminal (Halo: Combat Evolved Anniversary)|Terminals'' ''Halo 2: Anniversary'' ''Halo Mythos'' Sources Category:Forerunner A.I. Category:AI characters
2401 was a year in the 2400s in the 25th century. Events March 9 The Quito Space Tether, completed in 2313, is christened for use and officially named. At this event a monument to doctors Tobias Fleming Shaw and Wallace Fujikawa the co-creators of the Shaw-Fujikawa Translight Engine was placed in the elevators orbital receiving station. Sources
2403 was a year in the 2400s in the 25th century. Events The HRUNTING/YGGDRASIL Mark IX Mantis enters service with the United Nations Space Command. Sources
2406 was a year in the 2400s in the 25th century. Events The M71 Scythe anti-aircraft cannon enters service in the United Nations Space Command in this year. Sources
2411 was a year in the 2410s in the 25th century. Events The , including the lead ship of the class , enters service in the East African Protectorate's regional defensive forces in this year. Sources
2412 was a year in the 2410s in the 25th century. Events Alluvion is colonized by humanity. Around this time, the colonization of the Outer Colonies begins. Sources
2415 was a year in the 2410s in the 25th century. Events 48452-556-EPN644, a member of the The Assembly|Assembly, suggests that each of the AIs should occasionally offer themselves to be vivisected by the humans to lower any suspicions the humans might have towards their activities. The M6C/SOCOM enters service within the United Nations Space Command armed forces. Sources
2424 was a year in the 2420s in the 25th century. Events An ice quarry and magnetic mass driver on Seoba, the third moon of Biko, is shut down after the planet finally developed a climate humid enough to supply its own rain. Sources
2430 was a year in the 2430s in the 25th century. Events By this point New Mombasa had absorbed the entire island and many of the surrounding towns, which became overrun by residents of Mombasa. The switch of name was never official, and though many of the neighborhoods within direct line of sight to the Mombasa Tether still distributed newspapers and chatter directories under their previous names, all municipalities within a 74-kilometer radius of the island became referred to as "Old Mombasa". Sources
2431 was a year in the 2430s in the 25th century. Events Meridian is founded. The M7S SMG enters service within the United Nations Space Command armed forces. Sources
2432 was a year in the 2430s in the 25th century. Events The human Outer Colony of Meridian is settled by colonists from the country of France on Earth.''Halo 5: Guardians'', campaign level, Glassed - Mission Intel Sources
2437 was a year in the 2430s in the 25th century. Events The MA37 assault rifle|MA37 Individual Combat Weapon System enters service in the United Nations Space Command|UNSC. Sources
2440 was a year in the 2440s in the 25th century. Events The human colony of Crystal is established in this year. The human colony of Groombridge-1830 is established in this year. The human colony of New Harmony is established in this year. The human colony of Thales is established in this year. The human colony of Umagena is established in this year. The human Outer Colonies|Outer Colony of Biko is established in this year. The human Outer Colonies|Outer Colony of Bliss is established in this year. The human Outer Colonies|Outer Colony of Cygnus is established in this year. The human Outer Colonies|Outer Colony of Eridanus II is established in this year. The human Outer Colonies|Outer Colony of Mesra is established in this year. The human Outer Colonies|Outer Colony of Sansar is established in this year. The human Outer Colonies|Outer Colony of Terceira is established in this year. Sources
2450 was a year in the 2450s in the 25th century. Events The human human colonies|colony of Andesia is established in this year. The human colonies on the Atlas Moons were established in this year. Sources
2453 was a year in the 2450s in the 25th century. Events 103 years prior to February 8, 2556 The Human colonies|human colony of Aleria starts to suffer Devil's Kiss|a severe drought which would still be ongoing by 2556, with no rainfall in 103 years. By that point, the drought had devastated the planet and allegedly killed half of its inhabitants. Sources
2455 was a year in the 2450s in the 25th century. Events August 16 Robert Watts is born on Mars. The human Human colonies|colony of Asphodel is established in this year. Sources
2457 was a year in the 2450s in the 25th century. Events The Stewards gain control of the human Outer Colony of Meridian after a lengthy campaign known as the Free Patriot Movement. Sources
2458 was a year in the 2450s in the 25th century. Events A century prior to October 29, 2558 A human colony is established on Cassidy III, but is soon abandoned by governing authorities. Sources
2459 was a year in the 2450s in the 25th century. Events Sandmoore|Dr. Sandmoore received his degree in nutrition and fitness from the New Cairo School of Advanced Medicine. Sources
2460 was a year in the 2460s in the 25th century. Events The human Human colonies|colony of Alpha Corvi II is established in this year. The Sniper Rifle System 99 Special Applications|SRS99 enters service in the UNSC Army. Sources
2461 was a year in the 2460s in the 25th century. Events February 21 Margaret Parangosky is born. February 16 Jerald Mulkey Ander is born. October 28 Prophet of Regret|Lod Mron, the future High Prophet of Regret, is born on ''High Charity''. The M8823 drop pod is introduced into UNSC and Colonial Military Authority service. Sources
2462 was a year in the 2460s in the 25th century. Events The Infusion Incident occurs, where Kig-Yar tried to sterilize the Unggoy, sparking the Unggoy Rebellion. This cause the start of the Ages of Conflict|39th Age of Conflict in the Covenant Empire|Covenant. The end of the Unggoy Rebellion After much conflict in the Covenant Empire|Covenant, an Arbiter is sent in to end the rebellion, where the Arbiter leads partial Glassing|glassed the Unggoy homeworld of Balaho crushing the rebellion. Its conclusion marks the beginning of the Ages of Doubt|23rd Age of Doubt. Following the Unggoy Rebellion The Sangheili forgave the Unggoy, after they proved they could fight and let the Unggoy fight side by side with them. Sources
2468 was a year in the 2460s in the 25th century. Events The planet of Harvest is established as a Human colonies|human colony, the UNSC Skidbladnir|UNSC ''Skidbladnir'' transporting the first colonists. The ship, under the guidance of the Artificial intelligence|AI Loki, remains in the system to keep an eye on the establishment of infrastructure. Notes Sources
2469 was a year in the 2460s in the 25th century. Events May 1 Dumb AI Wellsley is activated. Over a year after 2468 The lands on Harvest in the Epsilon Indi system. The ship is eventually used for materials to build the colony, its power plant is used to power the capital city of Utgard. Sources
2470 was a year in the 2470s in the 25th century. Events August 23 Nizat 'Kvarosee is born in the Kvaros farmlands of Suban's Uka'Pala mesas. November 3 Preston Cole is born on Earth to Jennifer Cole and Troy Cole. Construction of the begins. Notes Sources
2473 was a year in the 2470s in the 25th century. Events January 2 The construction of the Phoenix-class Colony Ship, is completed. Coleman accepts the position as the first captain of the UNSC ''Spirit of FIre''. Sources
2474 was a year in the 2470s in the 25th century. Events November 23 Avery Johnson is born on Earth. The Hannibal family settles on thirty acres in the Pori region, New Carthage. Years later, those thirty acres would be the foundation of the city of Pilvros. Sources