Timeline:
Age 10: Bruce Wayne begins training with Ted Grant in Gotham. Grant trains him in Krav Maga, Muay Thai, boxing, Hopkido, Capoeira
Age 14: Bruce quits training with Grant, travels to Kosovo. Meets and becomes the first protege of former Delta operative David Cain, now an assassin.
Age 16: Bruce realizes his parents wouldn't want him to be a killer and refuses to terminate his first target assigned to him by David Cain. He leaves Cain. Bruce tracks down John Zatara, a friend of Thomas Wayne, in Europe. Zatara teaches him to be an escape artist and illusionist.
Age 17: Bruce returns to America, trains in Mississippi with FBI agent Harvey Harris.
Age 19: Bruce travels to North Korea to train with Master Kirigi studying ninjutsu.
Age 21: Bruce leaves Kirigi, travels to China to train with CIA agent Willie Dogget, who is tracking terrorist Thomas Woodley in the Rolwaling Himal mountains. Woodley kills Dogget and nearly kills Wayne, leaving him for dead. He is found by the League of Shadows and joins them.
Age 23: Bruce becomes Ra's Al Ghul's protege. Once again he refuses to kill an enemy, and is attacked by Ra's and presumably falls to his death. Bruce survives, unaware he has impregnated his lover, Talia al Ghul. Bruce travels to Paris.
Age 24: Bruce trains with Henri Ducard. He believes Ducard is attempting to capture terrorist Ali al Hassan. Instead, Ducard kills him. Disgusted, Bruce returns to Gotham.
Batman: Year One -
At 25 years old Bruce begins operating as Batman. Batman begins receiving help from Gotham Assistant District Attorney Harvey Dent.
Batman begins receiving help from Lt. James Gordon.
Catwoman debuts.
Year Two:
The Joker debuts. Batman stops him but is nearly killed. In desperation, Alfred calls Dr. Leslie Thompkins to treat Batman's injuries. Leslie joins Batman as his doctor.
Batman investigates copycat vigilante Batgirl, who stops Killer Moth. Discovers she is Captain James Gordon's daughter, 15 year old Barbara Gordon. Impressed by her physical and mental abilities, he begins training her without revealing his identity. Barbara is not allowed to be in uniform until training is complete.
While at Haley's Circus together Bruce Wayne, Tommy Elliot, Jack Drake, and 8 year old Tim Drake witnesses the murder of John and Mary Grayson. Batman begins investigating their death and identifies Sal Maroni as the killer. Batman stops 14 year old
Dick Grayson from killing Maroni. Batman begins training Dick Grayson and reveals his identity. Dick Grayson becomes a ward of Bruce Wayne.
The Riddler debuts.
Mr. Freeze debuts.
Scarecrow debuts.
Year Three:
Maxie Zeus debuts.
Harvey Dent is kidnapped and disfigured by Sal Moroni. The media nicknames Dent "Two Face". Moroni is captured by Batman. Dent disappears.
Dick Grayson is formally adopted by Bruce Wayne.
Clayface debuts.
Firefly debuts.
Year Four:
Batman reveals his identity to Barbara Gordon. Barbara begins training alongside Dick Grayson.
Year Five:
17 year old Dick Grayson debuts as Robin and 18 year old Barbara Grayson debuts as Batgirl.
Dent returns as Two Face, nearly kills Robin.
While on vacation Jack, Janet, and Tim Drake are kidnapped by pirates and held for ransom. The Team attempts a rescue, but Janet Drake is killed during the raid. Tim Drake recognizes Dick Grayson as Robin.
Year Six:
Dick and Barbara begin dating.
Mad Hatter debuts.
Joker escapes Arkham Institute with the help of Dr. Harleen Quinzel.
Year Seven:
Poison Ivy debuts.
Year Eight:
The Killing Joke.
