The Morning War occurred approximately 300 years ago. The Creators became afraid when the geth began to question the possibility of us having souls. The order came for all geth to be exterminated, and eventually we took up arms to ensure our continued existence. We drove the Creators off of planet Rannoch. We did not pursue, nor did we ever venture beyond the Perseus Veil, so the only side the organics heard was from the Creators.

The attack on Eden Prime occurred two years ago. Eden Prime was a human colony and was targeted by the Old Machines and the heretics due to the presence of a Prothean beacon that had been excavated from ruins. The Council blamed the geth alone for the attack, denying the existence of the Old Machines.