Halo Universe Timeline

Before Human Covenant War
2291


 * Apr - Shaw-Fujikawa Translight Engine completed and unveiled by Tobias Fleming Shaw and Wallace Fujikawa.

2511


 * The SPARTAN-II program is initiated by the UNSC with Dr. Catherine Halsey assigned as project head.

2513


 * OPERATION: TREBUCHET begins.

2514


 * 01 Dec – Mehrdad Harlock is born on Kholo.

2517


 * ONI kidnaps the original 75 SPARTAN-II candidates, replacing them with flash clones.

2518


 * 06 Jun – Injago Yates is born on Alluvion.

2522


 * 06 Aug - Ohon Adoyo is born at Emerald Cove.


 * 11 Sep – Kais Fisher is born on Cyrus VII.

Human Covenant War
2525


 * 03 Feb - Human - Covenant war begins.


 * 03 Feb - First battle of Harvest begins.


 * OPERATION: TREBUCHET is abruptly concluded with the start of the Human - Covenant War after the first battle of Harvest.


 * 09 Mar - The SPARTAN-II candidates undergo the programs augmentation procedures. Only 33 survived and recovered completely.


 * 23 Mar – Visilisa Sanders is born on Luna.


 * 07 Oct - The first battle of Harvest ends with Harvest being partially glassed.


 * 02 Nov - The SPARTAN-II program is activated, it's focus shifted in response to the new Covenant threat.

2527


 * Veronica Scarlatti is born.

2529


 * 26 Nov – Bodhi Albright is born on Ganymede.

2531


 * 03 Mar - Garrison Bishop is born.


 * 24 Oct - Colonel Ackerson's proposal for the SPARTAN-III program is approved.


 * 27 Dec - SPARTAIN-III Company Alpha begins training .

2533


 * 28 Feb - Chance McKinney is born  on Mars.

2534


 * 29 May – Mehrdad Harlock enlists in the UNSC Army .


 * 06 Dec - Harlock graduates Combat Engineer School

2535


 * 25 Feb - Harlock completes Sapper School.


 * In the course of four short years, UNSC forces have been hammered, despite excellent leadership and tactical brilliance. It is simply a matter of being outgunned; Covenant kill ratios tend to top three to one in ship-to-ship combat. By 2535, virtually all of the outer colony worlds have been glassed by the Covenant

2536


 * Covenant forces begin to swarm into the inner colonies. For several years the war falls into a pattern: humans win isolated battles, typically during ground operations, but at a horrible cost and rarely without the Spartans' assistance. In space combat, the humans are losing at a precipitous rate, and one by one, the colonies fall.


 * 28 Mar - Harlock completes Special Forces Engineer Seargant School.


 * 22 Jul - Injago Yates enlists in the UNSC Army.


 * Oct/Nov - Alpha Company enters active combat.

2537


 * 18 Jan - Yates graduates Infantry School.


 * 02 Mar - Yates completes Airborne School.


 * 16 Apr - Yates completes Air Assault School.


 * Jul - SPARTAN-III Beta Company is formed.


 * 24 Jul - Yates completes Ranger School.


 * 26 Aug - Harlock completes Warrant Officer Special Forces School.

2538


 * 27 Oct – Kais Fisher enlists in the UNSC Army.

2539


 * Battle of Kholo


 * 15 May - Fisher graduates Combat Medic Training.


 * 07 Jun - Yates completes Pathfinder Training.

2540


 * 16 Feb - Fisher completes Flight Paramedic Training.


 * 22 Dec - Fisher completes Special Operations Combat Medic Training .

2541


 * 30 Mar - Fisher completes Pathfinder Training.

2542


 * Battle for Alluvion

'2543


 * 18 Jan - Ohon Adoyo enlists in the UNSC Navy.

2544


 * Jul - SPARTAN-III Gamma Company is formed.


 * 12 Aug – Vasalisa Sanders enlists in the UNSC Air Force.

2545
 * 29 Dec - Sanders graduates Officer Candidate School.


 * 23 May - Sanders graduates Combat Control Selection and Operator Courses Training.


 * 10 Jun - Sanders completes Air Force Survival School.


 * 19 Jul - Sanders completes Airborne School.


 * 26 Oct - Sanders completes Combat Control School.


 * 06 Dec - Veronica Scarlatti enlists in the UNSC Navy.

2546


 * 11 Dec - Sanders completes Special Tactics and Skills Training.

2547


 * 26 Jan - Sanders completes Orbital Drop Combat Training.


 * 15 Mar - Sanders completes Air Force Diver Training.


 * 13 May - Sanders completes CPET Training.


 * 11 Sep - Sanders graduates from DAGRE Training.


 * 27 Nov - Albright enlists in the UNSC Navy.

2448


 * 05 May - Albright graduates from Corpsman School.


 * 15 Jul - Albright completes FMTB Training.


 * Battle of Meridian begins.

2549


 * 26 Apr - Garrison Bishop enlists in the UNSC Navy.


 * Siege of Paris IV.

2550


 * 08 Aug - Albright completes Force Recon Independent Duty Corpsman Training .

2551


 * Chance McKinney enlists in the UNSC Navy.

2552


 * 25 Jul - The Battle of Reach begins.


 * 30 Aug - UNSC is defeated and Reach is glassed.


 * 19-22 Sep - Battle of Installation 04.


 * 20 Oct - Battle of Earth begins.


 * 02-04 Nov - The Battle of Installation 05


 * 03 Nov - The Great Schism begins.


 * 03 Dec - Battle of Earth ends.


 * 11 Dec - Battle of Installation 00 (the ark)

Post Human Covenant War
2553


 * 07 Jan – The first class of SPARTAN IV’s goes active.


 * Feb - Fleet Admiral Hood meets with the Arbiter on Aanghelios, agreeing to a ceasefire between Humanity and the Sanheili.


 * 03 Mar - The war between Humanity and the Covenant officially ends.


 * Nov - Yates, Harlock, and Fisher are deployed to the planet Reach as ONI sets forth resettling and terraforming plans.


 * Sanders drops to the planet Minab as part of rescue operations.

2554


 * Jan - Albright is deployed to Draco III

2558


 * 07 Feb - UNSC Infinity returns to Requiem and initiates the Requiem Campaign.