Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)
X: -43.98 Y: 14.06 [e]
The system's sun, seen from the planet, is described as hot and orange.
- 2271 - No record 
- 2341 - No record 
- 2571 - Terran Hegemony 
- 2596 - Terran Hegemony 
- 2750 - Terran Hegemony 
- 2765 - Terran Hegemony 
- 2767 - Amaris Empire 
- 2771 - Amaris Empire 
- 2774 - Amaris Empire 
- 2822 - Lyran Commonwealth 
- 2864 - Lyran Commonwealth 
- 3025 - No record 
- 3028 - Rediscovered by ComStar, base established
- 3030 - No record 
- 3040 - No record 
- 3052 - No record 
- 3067 - No record 
- 3070 - Word of Blake (unmapped/hidden training world)
- 3130 - No record 
- 3135 - No record 
- 3145 - No record 
Haddings is a planet or system originally settled by the Terran Hegemony and which formed a part of the Hegemony's Tyrfing Province. It is situated between Lipton and Mizar and vanished from maps during the 3rd Succession War. 
Haddings was taken by the Rim Worlds Republic, and in turn (re-)conquered by the Star League. The 31st Republic Light Lancers used nuclear and chemical weapons against the SLDF, inflicting heavy damage on the world. After the war it was reduced to a few hundred thousand citizens, many of whom died from the poisons in the air and water in the following years.
After the SLDF left it to join Operation Exodus, the Lyran Commonwealth annexed Haddings, incorporating it into the Isle of Skye region of the Federation of Skye during the 1st Succession War. The already ruined world then suffered further chemical and nuclear attacks at the hands of the Draconis Combine; what remained of the infrastructure was destroyed and the cities were abandoned for fear of virulent biological weapons still lingering there. Essentially a depopulated wasteland, the planet dropped off the maps.
ComStar's Explorer Corps rediscovered Haddings in 3028 and found small, tribal communities living in the relatively unpolluted countryside with 17th century technology—31st century Haddings native Kim Dawson grew up in a community that still had a blacksmith. ComStar and ROM hoped to use the world as a secret training planet for the Com Guards and brought some equipment in, but in the wake of the order's 3052 schism the world was again largely forgotten. The Word of Blake eventually returned, setting up a training center in the city of Ulster. Medical care and education was provided to the population as well as subtle propaganda, turning them into extremely loyal Word of Blake supporters; yet the order did not reindustrialize the world and saw to it that the population would not contact the outside world.
As of 3070, the Word of Blake used Haddings as a secret training world where their Special Warfare Operations School (SWOP) was based. Raul Tinker was trained in unconventional warfare on Haddings.
- Handbook: House Marik, p. 16, "Free Worlds League Founding ["
- Handbook: House Steiner, p. 13, "Lyran Commonwealth Founding "
- Handbook: Major Periphery States, p. 18, "Rim Worlds Republic after Age of War "
- Handbook: House Steiner, p. 25, "Lyran Commonwealth after Age of War "
- Historical: Reunification War, p. 159, "Inner Sphere - 2596"
- Handbook: Major Periphery States, p. 25, "Rim Worlds Republic At the Fall of the Star League "
- Era Report: 2750, p. 37, "Inner Sphere - 2750"
- Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
- Historical: Liberation of Terra Volume 1, p. 104, "Rim Worlds Republic -  Map"
- Historical: Liberation of Terra Volume 1, p. 138, "Operation LIBERATION Wave 1 [July 2772 - December 2774]"
- Handbook: House Steiner, p. 36, "Lyran Commonwealth after First Succession War "
- Handbook: House Steiner, p. 40, "Lyran Commonwealth after Second Succession War "
- Handbook: House Steiner, p. 47, "Lyran Commonwealth after Third Succession War "
- Desperate Measures
- Handbook: House Steiner, p. 56, "Lyran Commonwealth after Fourth Succession War "
- Handbook: House Steiner, p. 59, "Lyran Commonwealth after War of 39 "
- Handbook: House Steiner, p. 61, "Lyran Commonwealth after Clan Invasion "
- Handbook: House Steiner, p. 70, "Lyran Commonwealth after FedCom Civil War "
- Map of the Inner Sphere 3130
- Era Report: 3145, p. 10, "Inner Sphere Map - "
- Era Report: 3145, p. 38, "Inner Sphere Map - "