By the 31st century Kyrian culture was reasserting itself. Quarren, the curator of the Kyrian Museum of Heritage recovered the backup module of Voyager's EMH, oh whom could re-assert history since he was actually there. After helping the Kyrians and Vaskans, The backup Doctor decided to journey home aboard a Kyrian vessel.
Years later, nearly home in the Kyrian vessel, the backup Doctor encountered the time-travelling Phoenix-X and downloaded a copy of their database before the Phoenix-X disappeared again. In this database, the Doctor became privy to the events of Voyager returning home, and the rest of Federation history. (Star Trek: Phoenix-X: "Temporal Doom! Part II")