GALACTIC HISTORICAL TIMELINE
FILE: Cross-Cultural Chronology
CLEARANCE: Educational / Restricted
SOURCE: UNSC Historical Archive
Compiled from UEG historical records, UNSC archives, recovered Covenant sources, and postwar Sangheili scholarship. Ancient-era dates remain approximate.
ANCIENT HISTORY
c. 97,000 BCE / Age of Abandonment
Estimated firing of the Halo Array. Collapse of Forerunner civilization associated with this period.
938 BCE / First Age of Conflict
War of Beginnings between Sangheili and San’Shyuum.
852 BCE / First Age of Reconciliation
Formation of the Covenant.
851 BCE / First Age of Discovery
Major Covenant expansion begins.
784 BCE / Age of Conversion
Lekgolo incorporated into the Covenant.
KNOWN PREHISTORIC DATA.....INCOMPLETE
FOREUNNER RECORDS..........FRAGMENTARY
SOURCE RELIABILITY.........PARTIAL
HUMAN EXPANSION ERA
2080 CE
Permanent off-world human habitation established. Beginning of the Expansion Era.
2160 CE
Jovian Moons Campaign begins. Opening of the Interplanetary Wars.
2162 CE
Rainforest Wars on Earth.
2163 CE
Formal emergence of the United Nations Space Command.
2170 CE
Expansion into settled Solar territories accelerates.
2200 CE
Major Interplanetary conflicts largely concluded.
COLONIAL EXPANSION
2142 CE / Age of Conversion
Unggoy incorporated into the Covenant.
2291 CE
Unified Earth Government founded. Practical Shaw-Fujikawa slipspace travel achieved. Beginning of extrasolar colonization.
2310 CE
First major wave of extrasolar colonization.
2362 CE
Domus Diaspora begins. Large-scale Inner Colony expansion.
2390 CE
Second major colonial expansion wave.
2462 CE / 39th Age of Conflict
Unggoy Rebellion.
2468 CE
Expansion into Outer Colonies accelerates.
2473 CE
Early colonial unrest emerges.
INSURRECTION CONFLICT
2490 CE
Large-scale Outer Colony unrest escalates.
2491 CE
ORION Project initiated.
2492 CE
Jiralhanae incorporated into the Covenant.
2494 CE
Insurrection formally begins.
2511 CE
Candidates selected for the SPARTAN-II Program.
2517 CE
SPARTAN-II Program initiated.
2524 CE
Emergency navigation security doctrine drafted, precursor to the Cole Protocol.
INSURRECTION STATUS........ESCALATING
SPECIAL PROJECTS...........ACTIVE
COLONIAL STABILITY.........DEGRADING
HUMAN-COVENANT WAR
2525 CE / 9th Age of Reclamation
First Contact at Harvest. Human-Covenant War begins.
2531 CE / 9th Age of Reclamation
Cole Protocol enacted.
2534 CE / 9th Age of Reclamation
Settlement of Highmark. Harvest Campaign concludes.
2535 CE / 9th Age of Reclamation
Outer Colony losses intensify.
2545 CE / 9th Age of Reclamation
Expanded deployment of the SPARTAN-III Program.
2552 CE / 9th Age of Reclamation
Fall of Reach.
Discovery of Installation 04.
Destruction of Alpha Halo.
Battle of Earth.
Great Schism.
Ark Campaign.
Glassing of Calder.
CRISIS STATUS.................RESOLVED
COVENANT UNITY.............COLLAPSED
COLONY LOSSES..............SEVERE
POSTWAR ERA
2553 CE
Human-Covenant War ends. Rise of the Swords of Sanghelios. Blooding Years begin. Kestrel Accord signed.
2555 CE
Outpost Vorun established.
2557 CE
Requiem Campaign. Renewed Forerunner hostilities encountered.
2558 CE
Created uprising begins.
2559 CE
Second Ark Conflict. Renewed Banished hostilities at the Ark.
2560 CE
Zeta Halo Conflict. Banished occupation of Installation 07 contested by surviving UNSC forces.
CURRENT ERA........2560
CEARCHIVE REVISION...12.4.77
STATUS.............ACTIVE