Society Catacombs

The Society Catacombs, otherwise known as the Society Structure, is a gigantic subterranean structure beneath the surface of Society, in the Outer Colonies.

Forerunner Era
Built over the course of almost 600 years, the Catacombs became active in 98,503 BCE, but was not finished until 98,395 BCE.

OPERATION: BLACK CARD
During OPERATION: BLACK CARD, the Catacombs suffered heavy damage when one of it's energy cores exploded as a result of the detonation of a HAVOK device.

Post-War
Following the end of the Human-Covenant War, the Office of Naval Intelligence discovered that the Catacombs were not completely destroyed as they had previously thought.