SolCore

SolCore was the original name for the central human government in the Halo universe, rather than the UEG and UNSC. By the time it encountered the Covenant, it had colonized seven worlds and discovered four "lost colonies" of humans living on the alien planets.^[1]

The word Sol most likely is a reference to the Solar System or the system's medium sized star, Sol. Core most likely means that it is the core government of the Sol System and all its colonies.

[edit] Deleted material

SolCore is part of the deleted material cut from the Halo games.

When developing the Halo games, Bungie, Ensemble Studios, and 343 Industries have had to cut some content from the final games. As such, many aspects of the games, such as vehicles, gameplay, design, and story elements, were not included in the final versions. Many of these elements have been confirmed by such material as videos and commentary, interviews with developers, and released concept art.

[edit] Sources

1. ^ Cortana Letters^{(not canon)}