37,000,000 BCE: 37 million years before the founding of the Citadel Council, an unknown race fired off a giant mass accelerator round of devastating power.This marks the start of the Council Era and the Galactic Standard timeline. Using what was though to be their own technology and the Mass Relays, the Protheans linked together their civilization before mysteriously disappearing in 48,000 BCE.įast forward 48,000 years later and the Asari, while experimenting with Mass Relay technology, stumble upon The Citadel in the Serpent Nebula.
This derelict reaper began orbiting Mnemosyne, thought to be dead.Ī few million years later, the only spacefaring race of their time, the Protheans, established a vast empire spanning across the galaxy. The earliest event in Mass Effect History is the disabling of a Reaper, a highly advanced, organic, sentient starship, by an unknown race 37,000,000 years before the discovery of the Citadel.
