Diadem Subsector

Diadem Subsector
Dlieblafia Andwella Hyperion Diadem style="width: 250px; height: 350px; border: solid 1px black;" map from Travellermap.com Four Corners
Sector	Vanguard Reaches
Capital	None
Number of Systems	17
Majority Control	Non-Aligned - %
2nd Control	Hyperion League - %

Subsector F of the Vanguard Reaches Sector.

• Note: Diadem is also an Old Sword Worlder name for the Glisten subsector in the Spinward Marches.

Description (Specifications)

Diadem Subsector is noted for the Diadem Main, and the rimward-spinward void region known as the Diadem Rift.

Worlds in this subsector cooperate loosely as part of the Diadem Trade League.

Diadem Subsector is serviced by Portmanteau Shipping Services.

Summary

Diadem, subsector F of Vanguard Reaches, contains 17 worlds with an estimated combined population of 5.8 billion. These worlds originate an interstellar trade through 16 starports (2 Class A, 5 Class B, 6 Class C, 3 Class D). Driving this interstellar trade are two Agricultural (Ag) worlds, five Non-Agricultural (Na) worlds, one Pre-Agricultural (Pa) world, three Pre-Industrial (Pi) worlds, one Rich (Ri) world, and two Industrial (In) worlds. The governments in Diadem maintain two Exploration bases, two Naval bases, one Military base, and one Clan base. The highest technology level is 13 at Nashua (Vanguard Reaches 1415).

Diadem, subsector F of Vanguard Reaches, contains 24 stars; 10 monostellar systems, 7 binary systems, no trinary systems, and no systems with four or more stars. 14 of the 17 systems have native gas giants. There are no Asteroid (As) belts, no Desert (De) worlds, two Garden (Ga) worlds, one Ice-capped (Ic) world, one Poor (Po) world, four Vacuum (Va) worlds, and one Water (Wa) or Ocean (Oc) world.

Diadem has an estimated population of 5.8 billion distributed across three High population (Hi) worlds, five Moderate population (Ph) worlds, four Non-industrial (Ni) worlds, three Low population (Lo) worlds, and no Barren (Ba) worlds. The highest population worlds are Traxler (Vanguard Reaches 114), Castrum (Vanguard Reaches 1215), and Tiffanye (Vanguard Reaches 1619). The population consists primarily of 3 sophont groups.

3 identified sophont populations in Diadem
Aslan of Kusyu (Dark Nebula 1226) Humaniti of Terra (Solomani Rim 1827) Chirper of Eskayloyt

Non-Aligned, Human-dominated

There are 15 Non-Aligned Human-dominated worlds in Diadem.

Aslan

An independent Aslan clan has jurisdiction over one world in Diadem with an estimated population of 2 million. They maintain one Clan base.

Hyperion League

The Hyperion League has jurisdiction over one world in the subsector with an estimated population of 20 million. The Hyperion League maintains one Naval base and one Military base within the subsector.

World Listing

14 Worlds in the Diadem Subsector

Assoulda  •  Castrum  •  Damrong  •  Finzi's Niche  •  Grotesk  •    •  Ibadam  •  Maklarre  •  Marlboro  •  Nashua  •  Queue  •  Skordahl  •  Tiffanye  •  Traxler  •  Vivaldi (Vang 1517)  •  

Astrography

(Chart sourced from Traveller Map)

The namesake Diadem Rift is partially located in this subsector.

History & Background (Dossier)

The Diadem Trade Council was first established at Baixing in 984. The Council met every standard year at Baixing, accomplishing little from a policy standpoint.

The growing power of the Hyperion League led to renewed interest in at least discussing a more coordinated trade effort. The resulting Conference of Baixing in 1054 led to the formation of the Diadem Trade League.

New Era

There was little in this subsector to excite or attract. While a number of industrial worlds did emerge, they were considered to be unfortunate accidents rather than deliberate development. All of this changed with the arrival of Aslan Ihatei in the neighboring Old Colonies subsector, just years before the Imperial Civil War. A brief economic boom resulted from trade with the new colonies, creating an improvement in local conditions. And when the war broke out, the locals profited handsomely from the influx of Corellan League military and privateers sent here to prevent further ihatei advances. The Gold Road was wealth du jour, after the Collapse, bringing a steady stream of foreign merchants through the subsector. It also brought an influx in organized crime, a quiet power struggle between the Corellans and feuding Aslan clans, and no small amount of petty intrigue.

Polity Listing: 1116

• Hyperion League (one system)

Native Sophonts

The following species are believed to have originated in this area:

• None

Demographics

Significant populations of the following sophont races exist within this subsector:

• Humaniti
  • Solomani
  • Vilani
  • Vlazhdumecta
  • Zhodani

• Non-Human
  • Aslan
  • Chirper

Languages

• Anglic: One of the two primary languages of the Imperium, and common on Human worlds beyond it.
• Vilani: One of the two official languages of the Third Imperium, and common beyond its borders.
• Vlazhdumecta: The language of the Vlazhdumecta people. Many dialects exist.
• Zdetl: The language of the Zhodani and the Zhodani Consulate, also common on many worlds of the Zhodani Shadow.

References & Contributors (Sources)

Alternate Versions:

• Paranoia Press (1991)
• T5 Atlas of the Imperium: Second Survey (FFE)

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This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.

• Paranoia Press, Vanguard Reaches
• Paranoia Press, Vanguard Reaches, 1991 online updates by Chuck Kallenbach
• Geir Lanesskog. The Spinward Extents (Mongoose Publishing, 2022), .
• TravellerMap T5SS Data
• J. Andrew Keith, Marc Miller, John Harshman. Aslan (Game Designers Workshop, 1984), . (named but no further details)
• Classic Traveller Alien Module 4: Zhodani (named but no further details)
• MegaTraveller Alien - Solomani & Aslan (dot map provided)
• EXTERNAL LINK: BARD-OPAL pages @ Downport.com by Author & Contributor: Peter Gray