Thule, A Semi-Arid Planet

Thule is known for its rich savannas, continually bombarded by lightning storms, but Thule was also a hidden Sith stronghold. The rocky outcroppings which broke the plains were charred black from being hit by lightning. This charred rock later served as a form of sustenance for unusual, bio luminescent moss that made the rocks glow with an eerie light.

Thule was on the northern frontier of Xim's empire.

After the Great Hyperspace War, several Sith survivors fled to the world, where they would remain for generations, waiting for their revenge of the Jedi and the Republic. They established a military dictatorship, ruled by an oligarchy of 8 generals,

Ulic fought on Thule during the Great Sith War, during which time the Dark Reaper was buried on the world. With the rise of Darth Revan's empire, Thule was absorbed into its boarders. At some point after, but before the 7th Battle of Ruushan, a group of Sith established a colony of Chiss on Thule, for reasons undetermined.

In 22 B.B.Y. Dooku went to Thule to revive the Dark Reaper in an attempt to destroy the Republic during the Clone Wars. A planetary shield enveloped the planet Thule, projected by the small moon Sivvi orbiting it. An attack led by the Republic resulted in the Battle of Thule and the destruction of the Dark Reaper.

Hopefully this information that I am teaching you about the planet Thule helps you fully. This "Thule" is truly the dark world, the history of the Sith, do not be tempted the ways of the Dark Side. Signing off...