A little history...
Major Points of Divergence.
The Legion of Superheroes.
- The Legion of this universe consists of members and occurances from each version of the Legion.
Crisis on Infinite Earths
- Supergirl is saved from anti-monitor's killing blast by Brainiac 5 and a team of Legionnaires, resulting in the death of Superman in her stead.
- In addition, the Legionnaires Spark, Saturn Girl, Chemical King, Mon-El, Sunboy, Projectra, Shadow Lass, 1/3 of Triad, Cosmic Boy, and Monstress die as a result of Brainiac 5's mission.
- Supergirl grows to hate Brainiac 5, also vows to protect the Earth as her cousin would have.
- The multiverse is left intact.
- Never happened. Both Hawk and Dove are alive and remain Hawk and Dove
Reign of the Supermen.
- These events begin years earlier than in the official DCU. Without Superman to back them, but with Supergirl's help, the heroes barely defeat the cyborg Superman.
- Supergirl and Batgirl are inducted into the Justice League.
- Eradicator forms a group of heroes, calls them the Outsiders.
The Killing Joke
- Joker cripples Batgirl and kills Jason Todd.
- Broken by the stress, Batman kills the Joker. He is never brought to trial for the murder. He retires for a short time, replaced by Nightwing, then later returns to being the Batman.
- Years later, Jason Todd is mysteriously resurrected and joins Young Justice.
- Barbara Gordon becomes Oracle.
- For the most part, this event occurs just as it had in the comics. However:
- Martian Manhunter, Atom (Ray Palmer), Black Canary II, Kiliwog, Batman, Blue Beetle, Wonder Woman (Diana), Hawkman (Katar Hol), Goldstar II and various sundry Green Lanterns are abducted by the Invading force and are successfully replaced by meta-human powered Durlans.
- The Dominion somehow obtains cell samples from Superman.
- Realizing the danger posed by Hal Jordan, the Guardians send the majority of the Lanterns against him, they fail and die.
- Hal becomes Parallax and puts the Zero Hour in motion.
- The Guardians pull the one GL they saved, out of hiding, Guy Gardner is made Kyle Raynor's trainer.
- Supergirl quits the Justice League.
- The Time Trapper sends Hal Jordan to the pocket universe, where the existence of the pocket universe is changed to fit Hal's whims, the DCU is left unaffected.