25-year-old Bruce Wayne first meets 21-year-old Selina Kyle, and soon also meets her new costumed alter-ego Catwoman.
27-year-old Harvey Dent becomes Gotham's new District Attorney after the old one is brought down on corruption charges thanks to his work alongside 39-year-old Lieutenant Gordon & 25-year-old Batman.
12-year-old Dick Grayson arrives in Gotham City with Haley's Circus. Cronies of Boss Zucco extort the circus for protection money. When they aren't paid, they sabotage the Graysons trapese, killing Jack & Mary Grayson. Dick is the sole witness, but is stopped from acting on it by 25-year-old Bruce Wayne to protect him from Zucco's retribution. Instead, Bruce takes him in and begins training him to work as a detective, discovering him an instant genius with acrobatics and marital arts. He helps capture Zucco but chooses not to kill him. He becomes Robin, donning a costume based on the ones worn by his family. 48-year-old Alfred Pennyworth becomes a surrogate father. He first meets 39-year-old Lieutenant Gordon, and his daughter 14-year-old Barbara Gordon.
33-year-old Victor Fries' use of his cryogenic lab to preserve his wife is discovered by Goth-Corp executives. they try to shut him down, and he is inadvertently bathed in experimental cryogenic fluid. He kills the men responsible, escapes and creates his own lab, using diamond-enhanced cryotech to steal the necessary funds to maintain his lab and save his wife, abandoning his title as doctor and instead embraces his role as Mister Freeze. He is stopped by 25-year-old Bruce Wayne, but is permitted to continue his research in the controlled enviornment of Arkham.
69-year-old Sandra Knight is forced into retirement from Checkmate by 33-year-old Amanda Waller, who takes over as tactical chief and forms the new Freedom Fighters, including 33-year-old Mark Shaw, 26-year-old Bones, 81-year-old Iron Munro & Frankenstein. Bones leaves the DEO to become the field leader. Iron Munro joins specifically to look out for Sandra Knight's interests after she is forced into retirement. 25-year-old Katarina Archer is their Checkmate liaison.
27-year-old Rick Flagg is recruited into Checkmate by it's new head Amanda Waller, quickly becoming her go-to operative.
28-year-old Boston Brand learns of the deaths of the Graysons.
12-year-old Wally West is in a lab accident that replicates 29-year-old Barry Allen's powers, and he becomes Kid Flash.
23-year-old Lois Lane is promoted to full staff reporter at the Daily Planet & receives her first award for journalistic excellence.
13-year-old Jimmy Olsen begins working at the Daily Planet as a gofer as part of a community service project. Lois Lane realizes how talented he is and gets him into the cub photographer pool.
39-year-old James Gordon becomes 14-year-old Barbara Gordon's sole caretaker when his ex-wife moves to Europe. He begins seeing Sarah Essen.
35-year-old Lex Luthor watches as 20-year-old Mercy Graves, having been caught stealing from him, beats all his bodyguards. Rather than turn her in, he cleans her up and hires her as his valet & bodyguard.
22-year-old Roman Sionis, in a last ditch effort to save his failing company, releases an untested cosmetic product. When it becomes evident that the cosmetic permanantly scars and disfigures people Lucias Fox bails them out by having Wayne Enterprises buy the company, with the understanding that Sionis must step down completely. In his rage at the world, Roman breaks into his parents tomb and carves a mask from his father's coffin. He becomes the viscious mob inforcer, Black Mask.
29-year-old Sal Maroni brings in Black Mask as an enforcer just as 47-year-old Carmine Falcone's DA is brought down by Batman, Harvey Dent, & Lieutenant Gordon, effectively restarting the war between the families.
29-years-ago Oswald Cobblepot takes over the Zucco's territory when they are brought down by Batman & Robin. He attones for the death of Sal Maroni's father Luigi, allying himself with the Maronis as they end the truce with Carmine Falcone.
18-year-old Karen Starr graduates high school and moves to Metropolis.
10-year-old Betty Kane, a nationally ranked gymnast, is selected as an olympic hopeful.
22-year-old Dinah Lance meets 28-year-old Oliver Queen when he joins the Justice League. He stops seeing 27-year-old Bonnie King.
29-year-old Will Magnus develops the earliest version of his responsometers.
26-year-old John Stewart finishes his tour with the Marines & uses the GI Bill to begin studying architecture.
25-year-old Ray Palmer gets his masters degree in particle physics and becomes an associate professor.
26-year-old Jean Loring finishes law school, passes the bar, & starts working in the Ivy Town DA's office.
22-year-old Doris Zeul graduates and begins grad school.
27-year-old Arthur Curry thwarts 28-year-old Black Manta's preliminary attacks on Atlantis. When 38-year-old Orm Marius realizes that he is actually Orin, the true heir to the throne of Atlantis, he inprisons him. There Arthur meets Vulko, who teaches him his heritage and helps him escape.
28-year-old Black Manta discovers the existance of his son 5-year-old Kaldur'ahm and takes him under his wing, killing his mother.
25-year-old Rex Mason is hired to retrieve a hidden artifact by the father of his fiance Saphire Shreck. he is betrayed and exposed to the artifact's radiation, mutating him into Metamorpho.
47-year-old John Standing-Bear discovers that he is dying and undertakes a quest to return the Manitou stone to the cave.
34-year-old Scandal Savage's girlfriend is killed by her father Vandal Savage. He insists that she bear a child to give him an heir.
18-year-old Amy Winston marries Lord Topaz & becomes the Queen of Gemworld.
12-year-old Grace Choi's powers begin to manifest, allowing her to escape & free the other children, who she protects and helps find homes.
22-year-old Manchester Black uses the shake-up in Checkmate's hierarchy to manufacture his own release from Checkmate, becomes a black-ops British intelligence operative.
19-year-old Evan McCulloch fulfills his first contract kill.
28-year-old Vic Sage starts taking cases as a private investigator.
24-year-old Floyd Lawton has an affair with Michelle Torres, unaware when she has his daughter.
23-year-old Ralph Dibny begins his career as a private investigator.
28-year-old Travis Morgan divorces his wife Rachel.
22-year-old Thomas Tresser graduates, and is recruited by the CIA.
20-year-old Rudy Jones gets a job as a janitor in Lexcorp Labs.
17-year-old Beatrice De Costa begins her professional modeling career.
19-year-old Jaques Ryder goes to school for journalism.
18-year-old Etta Candy moves to Gateway City to attend college.
12-year-old Mal Duncan takes up the saxophone.
9-year-old Holly Robinson's mother moves in with her drug dealer boyfriend. Their savings are soon completely gone.
Tye Longshadow is born.