Diodor sector

The **Diodor sector** was a region of space in the Beta Quadrant, near the coreward fringes of the Romulan Star Empire, bordering the Typhon Expanse and the United Federation of Planets, proximate to territory held by the Breen Confederacy. There are at least 14 star systems of note in the sector, three of which are home to intelligent native species. A massive nebula, known as "the Starry Road" to local species, bordered the sector on the side closest to the Delta Quadrant.

Some 15 million years ago, the Diodor sector was home to the Azar, a highly-advanced technological civilization capable of tremendous feats of solar engineering, terraforming and genetic manipulation. The Azar evolved quickly along the evolutionary ladder, and engineered parts of the Diodor sector to suit their own needs, seeding several worlds within the region with protogenetic material as part of their terraforming efforts.

Unfortunately, some of their early experiments on their home star resulted in an instability that caused it to go supernova. Unable to prevent the destruction of their home system, the Azar found a way for some of their population to escape the destruction into subspace, though they were radically transformed in the process. The Azar in subspace became multidimensional beings, capable of traveling at warp speeds and creating spatial distortions. With their own civilization destroyed, they chose to watch over the worlds they had seeded, becoming known as gods in the myths and legends of the species that arose there.

The Romulans began to explore the area in 2349, and colonized three M class worlds, Felussus, Gotanna III and Sandal IV. In 2364, a Romulan vessel made contact with the inhabitants of the planet Langus, but the ship and crew were destroyed by a subspace anomaly.

In 2367, a Borg cube entered the Diodor sector, and attacked the Romulan colonies. It went on to assimilate Prosenna, a world seeded by the Azar. When the Azar discovered the Borg incursion, they created a subspace distortion field that completely obliterated the cube. The Borg Collective then considered the region too dangerous for assimilation, and subsequently focused its attentions elsewhere. Since that time, the Azar remained especially alert for intruders into what they consider "their" space, and would react with hostility toward anyone attempting to interfere with their "children."

Sapient species native to the region include the Langians and the Ennarians, genetically-similar felinoid species seeded by the Azar, and the Krotarians, a reptilian species with certain characteristics reminiscent of the Gorn, though far from Gorn space and with a much more peaceful disposition. The civilization on Prosenna was similar to that of the Langians and Ennarians until their assimilation by the Borg. (LUG: *The Way of D'era: The Romulan Star Empire*, *All Our Yesterdays: The Time Travel Sourcebook*)

## Locations

* Ennar system
* Felussus system
	+ Felussus
* Gotanna system
	+ Gotanna III
* Krotar system
	+ Krotar
* Langus system
	+ Langus
	+ Alba
* Prosenna system
	+ Prosenna
* Sandal system
	+ Sandal IV
* Starry Road

## External links

* Diodor sector article at ***Memory Beta***, the non-canon *Star Trek* wiki.