halo encyclopedia — HALO ENCYCLOPEDIA

The most definitive guide to the universe thus far

RELEASES: March 29th, 2022 (New Edition)

SUMMARY

The Halo Encyclopedia is the first reference book for the Halo universe, containing descriptions of the Halo universe content, including species, weapons, battles, factions, and people.

Featured

Jan 1

January 1, 2142 – December 31, 2142

Unggoy Join the Covenant

January 1, 2142 – December 31, 2142

2142 CE

In 2142 CE, the Unggoy were discovered on their homeworld of Balaho by the Covenant and forcibly added to their list of member species.

January 1, 2142 – December 31, 2142

Jan 1

January 1, 2462 – December 31, 2462

Unggoy Rebellion

January 1, 2462 – December 31, 2462

2462 CE

Following years of abuse of Unggoy at the hands of the Kig-Yar culminating in the sterilization of thousands via poisoning, the Unggoy Rebellion began in 2462 to protest their treatment by the Kig-Yar and the Covenant as a whole.

January 1, 2462 – December 31, 2462

Jan 1

January 1, 2492 – December 31, 2492

Jiralhanae Join the Covenant

January 1, 2492 – December 31, 2492

2492 CE

In 2492, soon after the end of a devastating civil war between Jiralhanae that caused a total collapse in Jiralhanae society, the Covenant visited the Brute homeworld of Doisac and invited them to join.

January 1, 2492 – December 31, 2492

Jul 16

July 16, 2552 – July 18, 2552

Battle of Sigma Octanus IV

July 16, 2552 – July 18, 2552

The Battle of Sigma Octanus IV was a large-scale space and ground battle between UNSC and Covenant forces in the Sigma Octanus system in July 2552.

July 16, 2552 – July 18, 2552

Jul 24

July 24, 2552 – August 30, 2552

Fall of Reach

July 24, 2552 – August 30, 2552

The Fall of Reach was possibly the largest battle during the Human-Covenant War, taking place in the Epsilon Eridani system, in orbit and on the ground of Reach, humanity's largest military stronghold.

July 24, 2552 – August 30, 2552

Sep 19

September 19, 2552 – September 22, 2552

Battle of Installation 04

September 19, 2552 – September 22, 2552

The Battle of Installation 04 was an engagement between the UNSC Pillar of Autumn and the Covenant Fleet of Particular Justice on and around the Forerunner megastructure known as Installation 04, or Alpha Halo, in the Soell system.

September 19, 2552 – September 22, 2552

Oct 20

October 20, 2552 – December 3, 2552

Battle for Earth

October 20, 2552 – December 3, 2552

The Battle for Earth was a large-scale space, air, and ground battle between the invading Covenant forces and the UNSC Home Fleet on and around Earth at the end of 2552.

October 20, 2552 – December 3, 2552

Nov 1

November 1, 2552 – November 4, 2552

Battle of Installation 05

November 1, 2552 – November 4, 2552

The Battle of Installation 05 was an engagement between the Covenant forces, including those that fled the Battle for Earth, High Charity, and the Second Fleet of Homogeneous Clarity, and the UNSC-allied forces, including the UNSC In Amber Clad led by Miranda Keyes, and the Fleet of Retribution led by the Arbiter Thel 'Vadam.

November 1, 2552 – November 4, 2552

Dec 11

December 11, 2552

Battle of Installation 00

December 11, 2552

The Battle of Installation 00 was a major conflict between the forces stationed aboard the UNSC Forward Unto Dawn and Arbiter Thel 'Vadam's Fleet of Retribution, and the Covenant fleet loyal to the Prophet of Truth.

December 11, 2552

All Excyclopedia Events

VISITED WORLDS

Featured

Lesser Ark

Neoteric Halo Array Installation 00

High Charity

Holy City of the Covenant

Earth

Human Homeworld

Alpha Halo

Neoteric Halo Array Installation 04

All Encyclopedia Worlds

FEATURED CHARACTERS

Featured

Blue Team

Spartan-II Fireteam

John-117

Leader, Blue Team

Cortana

UNSC AI for John-117

Thel 'Vadam

Leader, Swords of Sanghelios

All Encyclopedia Characters

FEATURED WARSHIPS

Featured

Long Night of Solace

CSO-class supercarrier

Anodyne Spirit

Forerunner Keyship

UNSC Pillar of Autumn

Halcyon-class light cruiser

All Encyclopedia Warships

CREDITED CONTRIBUTORS

Featured

Jeff Easterling • FRANCHISE WRITER

• MYTHOS
• HALO INFINITE
• HALO ENCYCLOPEDIA

Frank O'Connor • AUTHOR / DIRECTOR

• EVOLUTIONS (MIDNIGHT IN THE HEART OF MIDLOTHIAN)
• LEGENDS
• HALO 4
• FRACTURES (SAINT’S TESTIMONY)
• FRACTURES (THE BALLAD OF HAMISH BEAMISH)
• TALES FROM SLIPSPACE (DOMINION SPLINTER)
• HALO INFINITE
• HALO ENCYCLOPEDIA

Kenneth Peters • FRANCHISE WRITER

• MYTHOS
• WARFLEET
• SPARTAN FIELD MANUAL
• HALO ENCYCLOPEDIA

◄ Fractures

Books

Essential Visual Guide ►