Cyrillia was explored sometime between 20,000 BBY and 15,000 BBY during the Great Manifest Period and settlement of Trailing Sectors. It fell into the area of space known as The Slice. By 4 ABY, the planet had become an Imperial fortress world. The Empire abandoned the planet in 6 ABY, after the Battle of Reytha.
By 25 ABY, Cyrillia boasted a population of 1 to 10 billion Cyrillians.
- Shadow Games (Mentioned only)
- The Official Star Wars Fact File 27 (PIT1, Pit Droids)
- The New Essential Guide to Droids
- The Complete Star Wars Encyclopedia
- The Essential Atlas
- The Essential Guide to Warfare
- Star Wars: Edge of the Empire Core Rulebook