Timeline of Young Justice

* **Around 48,000 BC**, Vandal Savage is born.
* **Around 2000 BC**, The scarab arrives on Earth, and is cleansed of Reach control by Isis.
* **Around 1300 BC**, Teth-Adam is born.
* **Around 1100**, Wotan is born.
* **Around 1200**, Darkseid invades Earth and wages war against Genghis Khan, easily defeating them. Khan and Darkseid come to form a pact.
* **1310-1410**, Ra's al Ghul is born.
* **1810**, Arnus lands on Earth.
* **1896**, B'arzz O'oomm is born.
* **1912**,
	+ Alan Scott is born.
* **1913**,
	+ Jay Garrick.
* **1914**,
	+ Ted Grant is born.
* **1915**,
	+ Kent Nelson is born.
* **1921**,
	+ T.O. Morrow is born.
* **1922**,
	+ Clement Lemar is born.
* **1926**,
	+ Dan Garret is born.
* **1940**,
	+ Jay Garrick debuts as the first Flash.
	+ Kent Nelson dons the Helment of Fate, becoming Dr. Fate.
	+ Alan Scott debuts as the first Green Lantern.
	+ The Justice Society of America is founded.
	+ The Blackhawks are founded.
	+ T.O. Morrow creates Red Torpedo.
	+ **May 30**, Nathaniel Adams is born.
* **1942**,
	+ T.O. Morrow creates Firebrand.
* **1947**,
	+ Jay and Joan Williams marry.
* **1977**,
	+ John Stewart is born.
* **1982**,
	+ **June 18**,
		- Kal-El is born.
		- Krypton is destroyed, with Kal-El getting sent in a pod to Earth.
* **1983**,
	+ **February 19**, Bruce Wayne is born.
* **1985**,
	+ **May 13**, Barry Allen is born.
* **1990**,
	+ Harleen Quinzel is born.
* **1991**,
	+ **June 24**, Iris West is born.
	+ **September 26**, Thomas and Martha Wayne are murdered by Joe Chill.
* **1996**,
	+ **March 18**, Nora Allen is murdered by Eobard Thawne.
* **2000**,
	+ John Stewart is taken to Oa for training.
* **2004**,
	+ Clark Kent debuts as Superman in Metropolis.
	+ Kyle Rayner is taken to Oa to train as a Green Lantern.
* **2005**,
	+ **August 24**, Donna Troy is born.
	+ **November 13**, Wally West is born.
* **2006**,
	+ **June 29**, Artemis Crock is born.
* **2007**,
	+ Hro Talak and Shayera Hol get engaged, going on leave to Alura.
	+ Hawkgirl arrives on Earth, becoming a spy.
	+ Ralph Dibny becomes the Elongated Man.
	+ **December 1**, Dick Grayson is born.
* **2008**
	+ Bruce Wayne debuts as Batman in Gotham City.
	+ Victor Fries is turned into Mr. Freeze, following a lab experiment gone wrong.
	+ **Between June and December**,
		- The GCPD creates the Bat-signal, as a means of contacting Batman.
	+ **June**,
		- **June 28**, A range of chemical robberies occurs in Gotham City, leading to Batman conducting an investigation.
	+ **November**,
		- Batman meets Ra's al Ghul.
* **2009**
	+ Damien Wayne is born.
	+ Jay Allen Carter accidentally releases the Imperium on Mars.
* **2010**
	+ **January**,
		- Matthew Hagen becomes Clayface.
	+ **February or March**,
		- Superman discovers Kara In-Ze on the remains of Argo, bringing her to Earth.
	+ **July**,
		- Superman and Batman encounter one another for the first time.
	+ **December**,
		- The Penguin begins his mayoral campaign in Gotham City.
	+ Barry Allen debuts as the Flash in Central City.
	+ John Stewart debuts as Green Lantern.
	+ Jason Todd is born.
* **2011**
	+ **June**,
		- Jay Allen Carters plan is ratified, with Superman beginning disarmament.
	+ **December**,
		- The Justice League is founded by Superman, Batman, Wonder Woman, Martian Manhunter, Green Lantern, Flash, and Hawkgirl, following an Imperium invasion.
* **2012**,
	+ **February**,
		- Lex Luthor founds the Secret Society, desiring revenge against the Justice League.
		- The Justice League defeats the Secret Society.
		- Brainiac destroys Bizarro's world.
	+ **July**,
		- **July 19**, Tim Drake is born.
	+ **August**,
		- **August 7**,
			* Felix Faust attacks Themyscira, freezing all the Amazons.
			* The Justice League defeats Felix Faust.
			* Wonder Woman is exiled from Themyscira.
	+ **September or October**,
		- The Joker frees the Royal Flush Gang from Cadmus.
	+ **October**,
		- **October 31**, The Justice League, with the help of Etrigan, stop Morgan Le Fay.
	+ **December**,
		- **December 24**,
			* The Justice League saves a neighboring ice planet.
			* Martian Manhunter meets the Kents.
		- **December 25**,
			* The Flash defeats Ultra-Huminite, temporarily teaming up with him.
		- **December 30**,
			* The Justice League defeats the Royal Flush Gang, following a game show like scheme set up by the Joker.
			* Ace stops the Joker.
	+ Cassie Sandsmark is born.
	+ Jonathan Kent is born.
* **2013**,
	+ **January**,
		- **January 29**,
			* The Thanagarians arrive on Earth, under the ruse of helping them against the Gordanians.
			* The Thanagarians begin construction of the Hyper spatial bypass.
			* The Thanagarians quarantine the entire planet.
		- **January 30**,
			* The Justice League drives the Thanagarians off of the Planet.
			* Hawkgirl leaves the Justice League.
	+ The Justice League begins constructing a new Watchtower.
	+ **February**,
		- **February 23**,
			* Lex Luthor arrives from an alternate dimension.
			* The Justice League meets Captain Luthor.
			* The Justice League travels to Earth-3 with Captain Luthor, encountering the Crime Syndicate.
	+ **September**,
		- Green Arrow, Captain Atom and Supergirl take down a lava monster in Russia.
* **2014**,
	+ Kyle Rayner debuts as Green Lantern.
* **2015**,
	+ Harley Quinn returns to crime.
	+ **September**,
		- Emerald Empress and Validus are brought back in time by the Legion of Superheroes, getting sent to Oa.
	+ **November**,
		- The remaining Fatal Five members and Star Boy arrive from the 31st century.
		- Starboy is taken to Arkham Asylum by Batman.
* **2017**,
	+ **April**,
		- **April 1**, The Flying Graysons are murdered by Tony Zucco.
			* Bruce Wayne adopts Dick Grayson.
	+ **October**,
		- Dick Grayson debuts as Robin.
* **2018**,
	+ Roy Harper debuts as Speedy.
	+ Donna Troy debuts as Wonder Girl.
	+ The Light is founded by Vandal Savage.
	+ The Light creates Jim Harper, another clone of Roy Harper.
* **2019**
	+ Wally West debuts as Kid Flash.
* **2020**,
	+ **June**,
		- **June 4**, The Ultimen debut as public heroes.
		- **June 18**, Superman is put under the spell of the Black Mercy by Mongul.
	+ **December**,
		- **December 4**,
			* Superman, Batman, Wonder Woman and Aquaman repel magma monsters off an oil rig, with an assist from the Ultimen.
			* The Justice League takes down the Ultimen, bringing Long Shadow back with them.
* **2021**,
	+ **June**,
		- **June 16**,
			* Lex Luthor takes over the Watchtower's Binary Fusion Generator, firing on an abandoned Cadmus facility.
			* The founding members of the Justice League turn themselves into U.S. custody.
			* Galatea and numerous squads of Ultimen raid the Watchtower.
			* Supergirl takes down Galatea.
			* Lex Luthor bonds with Brainiac.
			* The Flash defeats Brainiac, discovering the Speed Force in the process.
	+ **July**,
		- **July 4**,
			* The Hall of Justice officially opens to the public.
			* The Justice League destroys the Dark Heart.
		- **July 5**, Robin, Kid Flash, and Wonder Girl liberate Superboy from Cadmus, taking down Blockbuster.
		- **July 7**, Kid Flash and Superboy encounter the Terror Twins.
		- **July 8**, The Team is founded by Robin, Wonder Girl, Kid Flash, Superboy, and Miss Martian.
		- **July 9**, Robin, Kid Flash, and Wonder Girl escape the captivity of Black Spider and Hook.
		- **July 10**, Selena Gonzalez disappears.
		- **July 11**, Hawkgirl returns to the Justice League, following Solomon Grundy's resurrection.
		- **July 17**, Robin, Wonder Girl, Kid Flash, and Speedy stop Brick and his thugs.
		- **July 18**, The Team destroys Mister Twister.
		- **July 25**,
			* Dr. Serling Roquette is abducted by the League of Shadows.
			* The Team captures and defeats Psycho Pirate.
		- **July 27**, Kent Nelson is abducted by Abra Kadabra.
		- **July 31**, Artemis debuts as a vigilante.
	+ **August**,
		- **August 3**,
			* A.M.A.Z.O. ambushes Green Arrow and Black Canary, eventually getting dismantled by other Justice Leaguers.
			* A.M.A.Z.O. is rebuilt by Professor Ivo, having an encounter with Superboy soon after.
			* Artemis saves Kid Flash from A.M.A.Z.O.
			* The Team takes down A.M.A.Z.O.
		- **August 8**, Red Arrow rescues Dr. Roquette from Infinity Island.
		- **August 9**,
			* Artemis is recruited for the team by Batman and Green Arrow.
			* The Team encounters Cheshire, Black Spider, and Hook.
			* S.T.A.R. Labs in Philadelphia is destroyed by the fog.
			* Robin shuts down the Fog.
		- **August 19**,
			* Kent Nelson dies.
			* Wally West, having temporarily donned the Dr. Fate helmet, defeats Klarion.
		- **August 25**,
		- **August 26**, Batman and Robin are defeated by Clayface.
		- **August 27**,
			* Artemis Crock goes undercover at the Star City Police Department.
			* Batman saves the Team from Clayface, eventually defeating him.
	+ **September**,
		- **September 3**,
			* The Team is sent on a mission to Bialya, getting their memories wiped by Psimon.
		- **September 4**,
			* Superboy attacks Kid Flash and Artemis.
			* Miss Martian defeats Psimon, getting everyones memories back.
		- **September 6**,
			* Green Arrow and Artemis stop a museum break-in.
		- **September 7**,
			* Wonder Girl, Miss Martian, and Superboy are ambushed.
			* Flash and Kid Flash round up escaped zoo animals.
		- **September 11**,
			* Batman and Robin attempt to prevent the kidnapping of Jason Burr.
		- **September 12**,
			* Batman, Robin, Green Arrow, Artemis, Flash and Kid Flash interfere with Kobra's plans.
		- **September 14**,
			* Superman and Martian Manhunter stop the Terror Twins' three-state rampage.
		- **September 16**,
			* Miss Martian and Superboy go undercover and Belle Reve Penitentiary.
		- **September 17**,
			* Martian Manhunter defeats the Headmaster in Chicago.
			* Superboy and Miss Martian prevent a massive prison break at Belle Reve.
		- **September 22**,
			* Red Inferno and Red Torpedo attack Mount Justice, capturing Wonder Girl, Miss Martian, Kid Flash and Superboy.
			* Robin and Artemis stop the Reds, with Red Tornado betraying them to go undercover.
	+ **October**,
		- **October 1**, A giant plant attacks Metropolis.
		- **October 2**, The Team takes down the Injustice League.
		- **October 10**,
			* Zatanna joins the Team.
			* Red Volcano is created.
			* The Team and the Red Tornado family stop Red Volcano, but Inferno and Torpedo are destroyed in the process.
		- **October 16**,
			* The Team is put under a disastrously training simulation.
		- **October 31**,
			* Harm steals the Sword of Beowulf from a New York City museum.
			* Artemis and Zatanna stop Harm.
	+ **November**,
		- **November 5**,
			* Klarion summons four other sorcerers together to split the children and adults of the world into two different dimensions.
			* The Team sets up an emergency shelter in the Happy Harbor High School.
			* In the adult world, Riddler and Sportsmaster steal the echinoderm sample from STAR Labs.
		- **November 6**,
			* Zatanna temporarily dons the Dr. Fate helment, defeating Klarion.
			* Zatara becomes the new Dr. Fate.
		- **November 11**,
			* The Justice League and the Team join together to combat five flying ice fortresses.
			* Kid Flash delivers a heart to Queen Perdita.
		- **November 12**,
			* Kid Flash defeats Count Vertigo.
		- **November 13**, Rumaan Harjavti is put under Psimons control.
		- **November 25**, Superboy sees Genomorph City for the first time.
	+ **December**,
		- **December 1**, Sumaan Harjavti is assassinated by Deadshot.
		- **December 4**, Black Spider attempts to assassinate Bernell Jones, but is thwarted by Artemis and Green Arrow.
		- **December 22**, The Team joins the Haly's Circus, undercover.
		- **December 24**, The Team defeats the Parasite.
		- **December 30**,
			* The Team is ambushed by members of the Light.
			* The Team confronts Lex Luthor and Queen Bee.
			* The Justice League is put under the control of Starotech, by Red Arrow.
		- **December 31**,
			* Red Arrow escapes Aquaman, Flash, and Green Arrow.
			* Black Canary and Red Tornado are freed from their Starotech control.
			* The Team frees the Justice League from Starrotech control.
* **2022**,
	+ **January**,
		- **January 1**,
			* Red Arrow begins searching for the real Roy Harper.
			* The League of Shadows retrieve the real Roy Harper and Match.
		- **January 16**, Queen Bee enthralls Marie Logan to drive off a cliff.
	+ **March**,
		- **March 7**,
			* Red Arrow and Jim Harper search all 52 sublevels of D.C.'s Cadmus facility.
			* Jim Harper discovers he's another Roy Harper clone.
	+ **November**,
		- **November 1**, Ted Kord debuts as the second Blue Beetle.
* **2023**
	+ Superman meets Batman Beyond, under unknown circumstances.
	+ **October**,
		- **October 26**, Red Arrow and Jim Harper infiltrate a Lex Luthor robotics plant.
	+ **December**,
		- Jason Todd is taken in by Bruce Wayne.
		- **December 1**, Dick Grayson debuts as Nightwing.
* **2024**
	+ **June**, Jason Todd debuts as the second Robin.
	+ **August**, Jason Todd is killed by the Joker.
* **2025**
	+ Kid Flash defeats the Terror Twins.
	+ **May**,
		- Tim Drake is taken in by Bruce Wayne.
		- **May 26**, Red Arrow and Cheshire escape Infinity Island.
	+ **June**,
		- **June 16**, Flash and Hawkgirl prevent the Legion of Doom members from stealing off Blackhawk Island.
		- **June 23**, Wonder Woman, Martian Manhunter, and Green Arrow prevent the Legion of Doom members from recovering a lost ship.
	+ **November**,
		- **November 4**, Batman and Flash defeat the Rogues, following an attack on the Flash Mueseum.
		- **November 30**, Superman and Superboy take down Draaga, driving him off the planet.
* **2026**
	+ **January**,
		- Tim Drake debuts as the third Robin.
	+ **February**,
		- **February 17**, Nightwing, Kid Flash and Artemis begin investigating the disappearance of Helena Sandsmark.
		- **February 18**,
			* The Team encounters the Light in Bialya.
			* Tula sacrifices herself to stop Tiamat.
			* Donna Troy leaves the Team, becoming an ambassador for Themyscira.
			* Garth leaves the Team, becoming an ambassador for Atlantis.
	+ **December**,
		- **December 1**,
			* Superman and Superboy are taken by Brainiac.
			* Brainiac traps Metropolis in a Sphere.
			* The Team defeats Brainiac, forcing him to leave.
* **2027**,
	+ **January**,
		- **January 1**,
			* Superboy, Miss Martian, Beast Boy, Blue Beetle, Robin, and Bumblebee defeat Clayface.
			* Wonder Girl and Batgirl battle Lobo in the United Nations headquarters.
		- **January 5**,
			* The League and the Team destroy all Krolotean bases.
			* Superboy, Miss Martian, Beast Boy and Alanna take down Mechs.
		- **January 6**, The League and the Team destroy the main Krolotean base.
		- **January 26**, Superman, Batman, Wonder Woman, Hawkgirl, John Stewart, and Martian Manhunter leave Earth, heading to Rimbor to stand trial.
	+ **February**,
		- **February 13**, The Zeta-Shield is activated.
		- **February 20**, Miss Martian, Bumblebee, Wonder Girl and Batgirl infiltrate a large base in Bialya, rescuing numerous Meta-teens.
		- **February 28**,
			* Red Arrow and Cheshire locate the real Roy Harper.
			* Bart Allen, aka Impulse, arrives from the future.
	+ **March**,
		- **March 19**, Artemis' death is faked by Nightwing, Aqualad and Kid Flash.
		- **March 23**, Mount Justice is destroyed by Aqualad.
		- **March 31**, The Reach goes public at the United Nations headquarters.
	+ **April**,
		- **April 1**, Despero launches an attack on the Hall of Justice, eventually destroying it after a lengthy battle.
		- **April 9**,
			* Sportsmaster leaves the Light.
			* Deathstroke and Tigress ambush Miss Martian and Lagoon Boy, taking Miss Martian hostage.
	+ **May**,
		- **May 14**, Green Beetle puts Blue Beetle under Reach control.
		- **May 26**, The Team defeats and captures Mongul, getting captured themselves by Blue Beetle.
		- **May 27**, Miss Martian and Tigress fix Kaldur's mind.
		- **May 30**, Arsenal and the Runaways free the captured members of the Team, escaping back to Earth.
	+ **June**,
		- **June 13**,
			* Blue Beetle defeats Toyman, after an attempted robbery in Metropolis.
			* Blue Beetle is ambushed and captured by Zatanna, Rocket, and the Team.
		- **June 14**,
			* Zatanna cleanses Green and Blue Beetle of the Reaches control.
		- **June 19**, The Team sabotages the Reach-Light summit.
		- **June 20**,
			* The Team attacks the Reach Ship.
			* Black Beetle launches his Magnetic Field Disruptors around the world.
			* The Team and the Justice League successfully take down the MFDs.
			* The Flash sacrifices himself to stop the Crysalis.
			* The Leaguers on Rimbor arrive back on Earth.
	+ **November**,
		- **November 20**, Dawn and Don Allen are born.
* **2044**,
	+ **June**
		- **June 21**, Bruce Wayne retires as Batman.
* **2045**,
	+ Bane leaves prison, beginning to live in seclusion due to his years of Venom usage.
* **2048 or 2049**,
	+ Terry McGinnis is born.
* **2050**,
	+ The Jolly Jack Candy Factory closes.
* **Between June 2051-September 2052**,
	+ The Dee Dee twins are born.
* **2058**,
	+ Amanda Waller hires the Phantasm to kill the McGinnis family, however Andrea decides against it.
* **2060**,
	+ Kai-Ro is born.
* **2063**,
	+ Terry and Charlie Biglow are arrested.
* **2064**,
	+ The Crown of Tikal is stolen from the Mexico City museum.
* **2065**,
	+ **October**,
		- Terry McGinnis debuts as Batman.
* **2067**,
	+ **August**,
		- **August 5**, Unit Zeta goes renegade.
		- **August 11**, Unit Zeta appears in Gotham City.
* **2072**,
	+ David Clinton invents time travel, getting put into a time loop following an encounter with Batman, Wonder Woman and Green Lantern.
* **2079**,
	+ Amanda Waller reveals to Terry McGinnis that he's a clone of Bruce Wayne.
* **2462**,
	+ Booster Gold leaves the future, travelling back to the 21st century.
* **3002**,
	+ The Fatal Five captures nearly all the members of the Legion of Superheroes.
	+ Green Lantern, Green Arrow, and Supergirl are taken to the future by Brainiac 5 and Bouncing Boy.
	+ The Legion of Superheroes defeat the Fatal Five.
	+ Supergirl elects to stay in the future with Brainiac 5, officially joining the Legion of Superheroes.
* **3004**,
	+ Emerald Empress is captured by the remaining members of the Fatal Five, travelling back to the 21st century.