Codex Dump for a Post-Synthesis Galaxy (vol.1)The Age of Synthesis:
Post Mass Effect Technology Era and the Formation of Galactic Alliance
Stretching a time from late 2186 to 2250, the Great Migration was commonly recognized as the period of time when the starfleets came to aid Earth against the Reapers return to their homeworld by FTL or other conventional means of commuting. By Quarian help, some larger battle fleets were renovated into starships to cope with a sustainable residency. While most have left the Sol System, some choose to resettle themselves on Earth or closer clusters like Tuchanka to help the locals rebuild their homeworld. This caused a shift in galactic powers for a moment, until the Galactic Alliance was established.
The Galactic Alliance, established in year 2193, is an inter-stellar organization between the former Citadel Council, the Systems Alliance, and the Perseus Consortium. The three major players in the field combined their resources to host aiding programs and agencies