He put it together for the 2003 video game "Star Wars: Knights of the Old Republic ... the Jedi Code and another, much darker document. "That's where the Code of the Sith came from (reverse ...
the Jedi of the prequel era have long strayed from their focus on the Force, losing their identity after the Sith went underground and becoming politically intertwined with a dying system.
How does this all fit together ... Sith Wars, the Mandalorian Wars, and the Jedi Civil War, happened throughout this massive era. As it stands, the only canonical references to the Old Republic ...
Matthew Stover's excellent Revenge of the Sith novelization came out together with the movie, and, although it's technically not canon anymore, it provides some insight into what the Jedi thought.