The Great War was a global thermonuclear war caused by the Sino-American War. It resulted in the destruction of all participating nations and abroad, global disruption of the climate and billions of casualties as a result of nuclear blasts, exposure to radiation and the subsequent collapse of social and government structures, all within the span of just two hours.
Cosmos Events
This timeline exhibits events that played a key role in the history of this world. Other notable events are displayed as well.
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2077 FS
24 October2310 FS
18 December
Nuclear Dark Age
MiscellaneousWhen the bombs finally stopped, all that was left was the silence of billions of souls burned in nuclear fire. Humanity was pushed back to the dark age. In the centuries to follow, surviving humans faced radiological contamination, mutations, famine, and violent tribalism.
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2279 FS
8 January
Terran Starship Command
FoundingJohn James, with a defecting Enclave cell led by William Harkin Sr., found the Terran Starship Command, a paramilitary organization.
Location
Earth -
2295 FS
2350 FS
Reclamation Era
Political eventThe Reclamation Era is described as the time period in which the Terran Starship Command began enacting its machinations to restore peace and order to not only the wasteland, but to Earth in its entirety. Within the span of a few decades, the TSC was able to consolidate many allies and eliminate the worst aspects of post-apocalyptic barbarism.
Location
Earth -
2310 FS
United Terran Federation
Founding -
2316 FS
2356 FS
Secessionist Wars
Military: WarThe Interplanetary War was a large war between the United Terran Federation, Koslovics, Friedens, and the Sector Defense Front.
Location
Sol SystemSpecies
Human -
2348 FS
Mass Effect Discovery
Discovery, Scientific -
2357 FS
2357 FS
First Contact War
Military actionThe First Contact War, referred to as the Relay 314 Incident by the turians, was a small, three-month conflict between the human Systems Alliance and the Turian Hierarchy.
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2383 FS
2386 FS
Reaper War
Military actionThe Reaper War was a short-lived but incredibly destructive conflict waged by the Reapers against all organic space-faring species in the galaxy. The Reapers' intention was to carry out the latest of a cycle of mass extinctions of all technologically advanced life; this cycle was seemingly broken when the Crucible device, constructed by the species allied in mutual self-defense, utterly destroyed the Reapers with a massive energy blast.
Location
Milky Way -
2386 FS
2400 FS
Rebuilding Efforts Post Reaper War
Civil actionThe activation of the Crucible generated an energy wave which, spreading via the mass relay network, destroying every Reaper in the galaxy. Confusion gave way to elation as it was realized, against all odds, the war would not end in extinction for the sapient species of the galaxy. The denizens of the galaxy could now recover and rebuild.
Location
Milky Way -
2400 FS
2494 FS
Expansion Era
Discovery, ExplorationThe Expansion era spans from 2400 FS to 2494 CE and focuses on Federation Expansion into the Milky Way.
Location
Milky Way -
2494 FS
2525 FS
Insurrection era
RevolutionThe Insurrection era includes events spanning from 2494 FS to 2525 FS. The era includes UTF operations against the Rebel/Insurrection forces in the Outer Colonies, the continuation of the ORION Project and the creation of the SPARTAN Program.
Location
Milky Way -
2525 FS
11 February2552 FS
11 December
Human-Covenant War
Military actionThe Human-Covenant war focuses on the events from 2525 FS to 2553 FS, the years during which the Human-Covenant war was fought. Every battle in the Human-Covenant war, some minor human and Covenant rebel conflicts, and the Great Schism fall within this era.
Location
Milky Way -
2557 FS
21 July2560 FS
Reclaimer Era
RevolutionThe Reclaimer era began with the discovery of the Ur-Didact's Cryptum during the First Battle of Requiem in 2557, and includes the rise of Jul 'Mdama's Covenant, the awakening of the Guardians, the Reclamation, and the Second Battle of Installation 00 in 2559. It culminated with the thwarting of the rogue AI.
Location
Milky Way -
2560 FS
2710 FS
Galactic Unification Era
Political eventThe Galactic Unification Era, also known as the Unification Era, is a series of approximately 2 centuries where the United Terran Federation officially cemented their allies in a new supranational federation, waged war against rivals, and overcame several crises that emerged.
Location
Milky Way -
2573 FS
2578 FS
Rise of the Great Khan
Military actionThe Great Khan was a leader who unified the remaining marauder empires beneath his banner, and declared a war of expansion against all the galaxy. A war of approximately 5 years saw the horde's advances halted and the Great Khan herself assassinated aboard her flagship.
Location
Milky Way -
2590 FS
2614 FS
The Gray Tempest Menace
Military actionThe L-gates, long dormant, have been activated by Federal scientists. On the other side residing in the L-cluster, a civilization exposed to be an intelligent renegade nanite entity is released upon the galaxy.
Location
Milky Way -
2710 FS
3000 FS
Grim Age
Disaster / DestructionThe Grim Age is the period of time pertaining events such as the Awakening of the Ancient Empires, the War in Heaven, the Prethoryn Scourge, the Contingency, the Extradimensional Invaders, and the Omega Empire.
Location
Milky Way -
2710 FS
2 July
The United Federation of Nations
Founding -
2712 FS
2813 FS
War in Heaven
Military actionThe War in Heaven was a century long conflict between the United Federation of Nations and the Awakened Empires looking to reclaim past glories. The entire galaxy would turn into a battlefield, and trillions of lives would be lost in the war.
Location
Milky Way -
2816 FS
2854 FS
The Prethoryn Scourge
Military actionThe Prethoryn Scourge was an extragalactic invasion from a hive mind designated the Preythoryn. Invading through the outer rims of the galaxy, the Scourge was kept at bay for a long time before finally being defeated, albeit at a heavy price.
Location
Milky Way