The Wavlud Manuscript was written by Ingo Wavlud, a suspected Sith sympathizer. It detailed historical information pertaining to the Sith.
The Manuscript contained specific information regarding the Darth honorific and Darth Sidious, information unknown to Jedi historians up until recovering it from Wavlud's personal effects.
The manuscript came in the possession of the Galactic Alliance's Council on Security and Intelligence, where it was translated by agent Gannod Chant by 40 ABY. Tionne Solusar used it for her records about the Jedi and the Sith.