2156 (MMCLVI) was a bissextile year starting on Thursday of the Gregorian calendar (dominical letter DC), the 2156th year of the Common Era (CE) and Anno Domini (AD) designations, the 156th year of the 3rd millennium, the 56th year of the 22nd century, and the 7th year of the 2150s decade.
Events
- The Hyades Cluster Revolt begins.
Appearances
- Alien: The Roleplaying Game — Colonial Marines Operations Manual (mentioned only)
- Aliens: Fireteam Elite (mentioned only)