- Main article: Battle of New Harmony
Sometime prior to 2537, a battle took place on the planet. During this battle, a prowler, the UNSC Razor's Edge, managed to attach a telemetry probe to a retreating Covenant Frigate, allowing it to track the ship and locate K7-49. Surprisingly though, the UNSC managed to win one of a few naval victories against the Covenant here.
These are people who were born on have lived on the planet for an extended amount of time.
- Because Kat and Jun both speak with Slavic accents, it could be assumed that the New Harmony was colonised by Earth Eastern Europeans.
- New Harmony could be named after the New Harmony in Utah, Tennessee or Indiana.