Halo: an unofficial chronology

The Halo universe from the Precursors to Zeta Halo: the games, novels, comics, and the live-action Forward Unto Dawn and Nightfall, in their own calendar dates. Moments are tagged and colored by the medium that tells them; eras are shown as spans. The Paramount+ television series, a separate continuity, is not included. An unofficial fan chronology. Not affiliated with or endorsed by Microsoft, Xbox Game Studios or Halo Studios; summaries are our own.

54 moments · 10000000-01-01T00:00:00Z BCE – 2560-05-01T00:00:00Z CE · by @athan · @athan

Moments

1. The Forerunners overthrow the Precursors 10000000-01-01T00:00:00Z BCE
2. Humanity falls to the Forerunners 107500-01-01T00:00:00Z BCE
3. Bornstellar wakes the Didact 100000-01-01T00:00:00Z BCE
4. The Halo Array is fired 97445-01-01T00:00:00Z BCE
5. The Covenant is founded 0852-01-01T00:00:00Z BCE
6. The Shaw-Fujikawa drive 2291-01-01T00:00:00Z CE
7. The SPARTAN-II children are taken 2517-01-01T00:00:00Z CE
8. Helljumper 2525-01-01T00:00:00Z CE
9. First contact at Harvest 2525-02-01T00:00:00Z CE
10. Collateral Damage 2526-01-01T00:00:00Z CE
11. Corbulo Academy falls 2526-01-01T00:00:00Z CE
12. The Spartans strike behind the lines 2526-01-01T00:00:00Z CE
13. Oblivion 2527-01-01T00:00:00Z CE
14. The Cole Protocol 2531-01-01T00:00:00Z CE
15. The Spirit of Fire at Harvest and Arcadia 2531-02-01T00:00:00Z CE
16. Blood Line 2552-01-01T00:00:00Z CE
17. Halo: Evolutions 2552-01-01T00:00:00Z CE
18. Halo Legends 2552-01-01T00:00:00Z CE
19. The fall of Reach 2552-08-30T00:00:00Z CE
20. Installation 04 2552-09-19T00:00:00Z CE
21. Fireteam Raven 2552-09-20T00:00:00Z CE
22. The Flood 2552-09-20T00:00:00Z CE
23. First Strike 2552-10-01T00:00:00Z CE
24. Onyx and the Shield World 2552-10-01T00:00:00Z CE
25. Halo: Uprising 2552-10-01T00:00:00Z CE
26. The Covenant reach Earth 2552-10-20T00:00:00Z CE
27. New Mombasa 2552-10-20T00:00:00Z CE
28. The Master Chief returns to Earth 2552-11-17T00:00:00Z CE
29. Installation 00, the Ark 2552-12-11T00:00:00Z CE
30. Initiation 2553-01-01T00:00:00Z CE
31. Kilo-Five and the Office of Naval Intelligence 2553-01-01T00:00:00Z CE
32. Jameson Locke on Alluvion 2553-01-01T00:00:00Z CE
33. Retribution 2553-01-01T00:00:00Z CE
34. Shadow of Intent 2553-01-01T00:00:00Z CE
35. The Human–Covenant War ends 2553-03-03T00:00:00Z CE
36. Hunters in the Dark 2554-01-01T00:00:00Z CE
37. Veta Lopis on Gao 2554-01-01T00:00:00Z CE
38. Smoke and Shadow 2554-01-01T00:00:00Z CE
39. Spartan Assault 2557-01-01T00:00:00Z CE
40. Spartan Strike 2557-01-01T00:00:00Z CE
41. Requiem and the Didact 2557-07-01T00:00:00Z CE
42. Spartan Ops 2557-11-01T00:00:00Z CE
43. Halo: Escalation 2558-01-01T00:00:00Z CE
44. Legacy of Onyx 2558-01-01T00:00:00Z CE
45. Lone Wolf 2558-01-01T00:00:00Z CE
46. Renegades 2558-01-01T00:00:00Z CE
47. Cortana and the Created 2558-10-01T00:00:00Z CE
48. Bad Blood 2558-12-01T00:00:00Z CE
49. The Spirit of Fire reaches the Ark 2559-01-01T00:00:00Z CE
50. Point of Light 2559-01-01T00:00:00Z CE