The Sith Empire was founded in approximately 6,900 BBY by exiled fallen Jedi fleeing the Battle of Corbos, which concluded the Hundred-Year Darkness[4]. The fallen Jedi landed on Ziost.
Using their training in the Force, the fallen Jedi amazed the Sith and elevated themselves to god-like status on Ziost becoming the rulers of the Sith people[4]. As years passed, and interbreeding occurred between the Fallen Jedi and the Sith[3], the term "Sith" came to mean not only the original inhabitants of Korriban, but also their fallen Jedi masters. Until the rise of Naga Sadow, the existence of the Sith Empire was unknown to the Galactic Republic.
Under the pall of Sith magic, this desolate world became more hellish and dangerous[5].The Sith Lords erected huge palaces and burial complexes to honor their fallen Dark Lords. Circa 5,000 BBY, the planet became an endpoint of the newly-formed Daragon Trail hyperspace lane, when it was discovered by Gav and Jori Daragon[1]. This event triggered the Great Hyperspace War. After the fall of the Sith Empire, the planet lost much of its prominence in the Galaxy, eventually falling off the galactic starcharts for a thousand years.
Korriban was resettled prior to 3,993 BBY by Dark Jedi survivors of the Exar Kun War, and was home to the new settlement of Dreshdae and a Sith training academy[3][6]. Darth Revan and Darth Malak visited the planet on their quest to discover the Star Forge. After losing his memory, Revan visited this academy again on his quest to re-discover the Star Forge for the good of the Republic. In 3,993 BBY, as part of the Great Hunt, Duron Qel-Droma and Shaela Nur died on the planet, failing to cleanse it of terentateks[3][6]. The planet became the capital of the Czerka Corporation. With the death of Master Uthar Wynn, the academy's headmaster, and Darth Malak himself at the hands of Revan in 3,956 BBY, the Sith Order collapsed into a civil war (which took place 3,956-3,955 BBY) which decimated the Sith Order.[7]
It took the Republic a couple of years to send an expeditionary force to Korriban (around 3,954 BBY) in order to deal with any potential Sith who might attempt to take up the mantle of Dark Lord. They found a planet nearly in ruins—barren and lifeless as a result of the then unknown civil war[7]. It was assumed by the commanders of the Republic task force that the remnants of the Sith turned on each other, vying for what little power remained. It was also said that Revan had always intended to return to Korriban one day to subdue any would-be Sith insurgents, but he then disappeared.[7]. However, the Republic discovered evidence that several Sith Lords did manage to escape the planetary conflagration, fleeing to remote corners of the galaxy.[4]
After the fall of Darth Malak, the ancient tombs within the Valley of the Dark Lords were plundered by grave-robbers. Each tomb was once infused with history and heritage of the old Sith Empire, containing great mysteries and powerful relics of the Force. Many broken, charred corpses littered the plains of Korriban during this time, virtually all that remained of the Sith who once inhabited the world. However, their malignant spirits remained, ready to confront any who disturb their rest by way of their guardian-familiars, the Hssiss.[7]
In the chaos following the Jedi Civil War, which nearly destroyed the Jedi Order, Jedi Master Lonna Vash used Korriban as a hideout. She was eventually trapped and killed by Sith Lord Darth Sion in the ruins of the academy, and then used as bait to lure the Jedi Exile into Sion's hands. After escaping the trap, the Exile discovered the long lost tomb of Ludo Kressh
-Places on Korriban-
[Outskirts]
[Valley of the Sith lords]
[Torture chamber]
[Medical ward]
[Living quarters]
[Council room]
[Hanger]
