HOST STAR: None
STATUS: Damaged (Battle of Installation 00, 2552)
POPULATION: Several thousand (Banished and UNSC Spirit of Fire)
SPECIES: Jiralhanae / Sangheili / Unggoy / Human
ANCIENT HISTORY
The Lesser Ark, more generally known as just the Ark or Installation 00, is a Forerunner construct, designed to both create and control the Neoteric Halo array from outside the Milky Way galaxy. In addition to acting as the central control hub of all seven Halos, the Ark functions as a home for many species from many planets that were protected in order to repopulate the galaxy after the firing of the Halo array. These refugia, as they are known, are physically separated by large walls used to control both the local climates and the migration of species between regions. At the end of the Forerunner-Flood War in 97,445 BCE, the Lesser Ark was used for its intended purpose, to eradicate the galaxy of all sentient life and starve the Flood in what is known as the Great Purification, the only time the Halo Array was fired.
~97,745 BCE - 97,445 BCE
The Forerunner-Flood War was a military engagement between the Forerunner species and the Flood that took place over approximately three-hundred years from 97,745 BCE until 97,445 BCE.
~97,445 BCE
The Great Purification was the final event of the Forerunner-Flood War, purging the entire Milky Way galaxy of all sentient life, including Forerunners, the Flood, and any other species that may have survived the Flood infestation.
MODERN HISTORY
In 2552, the portal to the Ark from Earth was discovered and opened, leading to a battle on the installation to try and stop the Prophet of Truth from activating the entire Halo array. The UNSC and their allies managed to stop Truth, but not before causing significant damage from battles and the firing of Installation 08 overhead of the Ark.
In 2554, the Office of Naval Intelligence sent a team to investigate the status of the Ark, but contact with them was soon lost. Less than a year later in 2555 another team consisting of humans and Sangheili were sent through the portal to the Ark after researchers discovered a countdown that was occurring on all Halos. While there the team discovered the monitor of the Ark, 000 Tragic Solitude, had set the countdown to get the portal opened and send monitors to Earth to harvest it for raw materials. This attack on Earth from the Ark was stopped, and the Ark remained partially repaired for the next several years.
For the next few years, the UNSC and ONI established a research base on the Ark, ensuring the Ark remained stable and learning what they could from the installation. At the onset of the Rule of the Created in 2558, the portal was closed, sealing off the research team from Earth. A month later, the Ark was visited by the Banished, a rogue group of pirates led by the Jiralhanae Atriox, and the research team was killed. In March of 2559, the Spirit of Fire arrived above Installation 00, and began a conflict with the Banished, resulting in the generation of another Halo and the temporary release of the Flood from the wreckage of High Charity.
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.
The Return to Installation 00 was an Office of Naval Intelligence mission undertaken by the UNSC Rubicon to return to the Ark following the Battle of Installation 00 and investigate the status of the facility in August 2554.
Operation: FAR STORM was a joint UNSC and Swords of Sanghelios mission to reactivate the Portal at Voi and travel back to Installation 00 after discovering the Halo array was counting down to activation in March 2555.
The Second Ark Conflict was a battle between the UNSC forces aboard the Spirit of Fire and the Banished forces under command of Atriox on Installation 00 in 2559.
The Outbreak on Installation 00 was a brief encounter between Banished forces and the Flood on the surface of the Ark in and around the wreckage of the Covenant holy city High Charity.
The Battle of Epsilon Clarion was a conflict on the Ark between the Keepers of the One Freedom, the Covenant, and the Banished to activate the Halo Array in late 2559.
FEATURED GAMES
FEATURED NOVELS
FEATURED FILMS
REFERENCE BOOKS

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