5,000 BBY

The Unification Wars. Empress Teta unifies the seven worlds of the Koros system.
The New Essential Guide to Characters.
-
 
Tales of the Jedi: The Golden Age of the SIth
-----"Conquest and Unification"
-----"Into the Unknown"
-----"Funeral for a Dark Lord"
-----"The Fabric of an Empire"
-----"Pawns of a Sith Lord"
-----"The Flight of Starbreaker 12"
(#0-5 - Dark Horse Comics - July 1996-Feb 1997)
-
 
Tales of the Jedi: Fall of the Sith Empire
-----"Desperate Measures"
-----"Forces in Collision"
-----"First Encounter"
(#1-3 - Dark Horse Comics - June-Aug 1997)
 
Crosscurrent - Old Republic scenes
(Del Rey Books - Jan 2010)
-
Lost Tribe of the Sith: Precipice
(eBook - Del Rey Books - May 2009)
 
Tales of the Jedi: Fall of the Sith Empire
-----"The Dogs of War"
-----"End of an Empire"
(#4-5 - Dark Horse Comics - Sept-Oct 1997)
 
 
Lost Tribe of the Sith: Skyborn
(eBook - Del Rey Books - July 2009)
 
 
Ood Bnar of the Neti race is born, possibly on the planet Myrkr.
Tales of the Jedi: Dark Lords of the Sith.
-
 
Corellia StarDrive is founded by a former executive from Corellian Engineering Corporation.
The Essential Guide to Vehicles and Vessels, via Time Tales.
-
 
The Sith library on Arkania is destroyed by several hundred Jedi masters.
Tales of the Jedi Companion.
-
 
Old Republic explorers discover the Epidimi system, home to the twin planets Disim and Iri.
Galaxy Guide 12, via The Completely Unofficial Star Wars Encyclopedia.
 
 
 
4,985 BBY
Lost Tribe of the Sith: Paragon
(eBook - Del Rey Books - Feb 2010)
 
 
 
4,975 BBY
Lost Tribe of the Sith: Savior
(eBook - Del Rey Books - Apr 2010)
 
 
 
4,904 BBY
Rebirth of the Sith Empire
(Galactic Timeline - Star Wars: The Old Republic website - Dec 2010)