97Mass Effect: Orion's Hunt » The Prothean Archives on Mars were corrupted, only scraps of data remaining. What little was left led to the single largest effort in Human history. This endeavor saw a colonial flotilla and millions of souls stranded a galaxy away from home. Two centuries later, a new nation far from Earth begins reaching for the stars in search of their old home.

730 Mass Effect: Trailblazer » Humanity, left to its own devices for centuries, comes into contact with the Citadel Council. A misunderstanding leads to hostile first contact, and the UNSC is drawn into war with the Council shortly after the Insurrection's height. The Council finds itself face-to-face with a species that has broken the shackles of Mass Effect Technology. The Era of Humanity has only just begun.

588Humanity's Rebirth » The First Contact War brought untold destruction to Earth, reducing Humanity to a shell of its former self. For 900 years, Humanity has been working tirelessly to lay claim to its own slice of the Milky Way Galaxy, and they are prepared to bring the Council to its knees to accomplish their goals. (Massive AU, New Technologies, and a far different humanity.)

322 The Mantle's Promise » A thousand years following the end of the Human-Covenant War, Humanity and the former Covenant species are unified under the Galactic Coalition, a single overarching government that adheres to the Mantle of Responsibility. During an expedition to the Andromeda galaxy, a Prowler-Class stealth frigate comes in contact with the Galactic Republic and by extension, the Separatists.