Shi'ar Empire

The Shi'ar Empire was the official name the Intergalactic Empire assumed before it took over the Galactic Republic. Shi'ar were the founders and at first the undisputed masters of their Empire, but as interstellar and intergalactic wars with the Skrull Empire and the Kree Empire caused the Shi'ar regime to assume control of more territory in an area extending from the Andromeda Galaxy to the Milky Way Galaxy (and their satellite galaxies), circumstances saw non-Shi'ar, especially Humans who lived in formerly Kree-controlled territory, rise to positions of power in the so-called Shi'ar Empire.

The Shi'ar Empire was originally formed 25,034 years ago, shortly after the Shi'ar invented hyperdrive, although at first the Empire only governed Chandilar and it's local solar system.