[Source] Constructed by the Dark Lord of the Sith Revan during the Jedi Civil War, Darth Revan's Sith Holocron, also referred to as the Holocron of Darth Revan, contained the Sith Lord's teachings on the dark side of the Force, and his knowledge of ancient Sith rituals. It included instructions on how to use the Force power known as the thought bomb, and the lessons from the Holocron focused on the user coveting the dark side and the importance of a Sith Master training one apprentice at a time. Following Darth Revan's redemption and the end of the Jedi Civil War, the Sith holocron remained hidden within the Temple of the Ancients on the planet Rakata Prime.