The timeline of There Was Once an Avenger From Krypton, as revealed and detailed via Darthkvzn's publicly released document found here
(direct link to the timeline here).
NOTE: The timeline only covers information regarding fics for the series that have been released. As such, it will be updated as the series continues.
BCE: Before the Common Era
CE: Common Era
Beginning of time to roughly 100,000 BCE
- Earth-199999 spawns as a derivative of Earth-616, the mainline Marvel universe.
- Six conceptual singularities holding domain over the forces of Power, Time, Space, Reality, Mind, and Soul are brought into being in the universe.
- A Celestial splits their form and consciousness into the beings that would become known as the Kwamis, each holding dominion over an aspect of the universe. They eventually settle on a recently formed planet that would become Earth.
- The entity known as White Diamond begins creating and spends the next several thousand years cultivating the Gem race. She later splits Blue and Yellow Diamond from her being and establishes the Great Diamond Authority. Homeworld begins its expansion.
- The Galvans uplift the Petrosapiens to serve as their protectors.
- Azmuth creates the Omnitrix.
- The Petrosapien race wipes out the Galvans. The Omnitrix is launched into space and lost for ages.
- Bellroc becomes Earth's first Sorcerer Supreme.
100,000 BCE
- The Altean race begins charting the universe and cataloguing its sentient life.
50,000 BCE
- White Diamond splits a part of her being to create Pink Diamond.
- Pink Pearl is created for Pink Diamond.
40,000 BCE
- Skrael serves as Sorcerer Supreme, and in this capacity helps humanity survive the Ice Age.
15,000 BCE
- Pink grows tired of being treated as a lesser to her fellow Diamonds and starts requesting to be given a colony.
- Pink Diamond damages her Pearl beyond repair in a tantrum. Pink Pearl is taken away by White Diamond.
- The Pearl that would later serve as Pink's closest confidant is created for her.
10,000 BCE
- The two gems, Albite and Orthoclase, that would eventually become the rogue permafusion known as Moonstone are created.
9,500 BCE
- Nari serves as Sorcerer Supreme and helps humanity develop agriculture.
8,500 BCE
- A transdimensional comet crashes into the Galra homeworld of Diabazaal. King Alfor uses it to forge the Voltron Lions.
- The Paladins of Voltron are established and secure peace throughout the galaxy for centuries.
8,000 BCE
- Emperor Zarkon and his wife, Honerva, perish in the Quintessence Maelstrom.
- The interdimensional fissure left behind by the initial comet collision destabilizes Diabazaal, forcing King Alfor to destroy the planet at the cost of displacing the Galra race.
- Zarkon and Honerva resurrect, but are corrupted, with Zarkon deceiving his people into believing Alfor to be the villain. The newly formed Galra Empire declares war on Altea, the Paladins, and all their allies.
- Zarkon's empire defeats his former allies and renders the Altean race functionally extinct. King Alfor scatters the Lions across the universe and puts both his daughter and her retainer in stasis before sending the Castle of Lions to hide on Arus. Alfor is later slain in battle by Zarkon.
- The Galra Empire begin conquering and expanding across the universe.
- A group of Alteans use alchemy to render many of their identifying traits dormant, altering their physical appearance so that they can hide from the Galra. The descendants of this group will become known as the First Ones.
4,500 BCE
- Lapis Lazuli is created.
- Earth is charted by the Diamond Authority.
4,000 BCE
- Sapphire is created.
- Bismuth is created.
- Pink Diamond is finally given leave to make Earth her first colony. In her haste, she unwittingly abandons her playmate, Spinel, on the Garden facility.
- The Diamond base on Earth's moon is constructed as the colonization begins.
- Pink realizes that colonization will destroy all life on Earth and begins attempting to appeal to her fellow Diamonds to stop the process.
- Blue Diamond creates the Human Zoo in an effort to appease Pink's desires. A group of humans detained there escape and are rescued by passing Xandarians, with whom they eventually interbreed, leading to the proliferation of humans across the galaxy.
- After her attempts at reasoning fail, Pink Diamond takes the identity of Rose Quartz and works to sabotage the colonization.
3,750 BCE
- Ruby is created.
- Ruby defies fate and saves Sapphire from attempted assassination. The accidental fusion results in Garnet, Homeworld's first publicly recorded cross-Gem fusion.
- Ruby and Sapphire escape execution and fall in love, joining the growing Crystal Gem rebellion. They decide to stay permanently fused as Garnet.
3,500 BCE
- The Crystal Gem rebellion becomes enough of a threat that the Diamond Authority takes action. Their example leads to others in the Gem Empire to form small cells and break away.
3,000 BCE
- Several Gem scouts are captured and reverse-engineered by Seklos, Royal of Arkiridion-V, in order to allow the Arkiridions to evolve into Energy Beings so that they can fight back against the Celestial Gaylen. Distracted by the Crystal Gem rebellion, Homeworld fails to retaliate for this.
2,600 BCE
- Jasper is created at the Beta Kindergarten
- Pink Diamond fakes her own death at Rose Quartz's hands, becoming the rebellion leader full time.
- The Diamonds launch a final assault on Earth that corrupts every gem on the planet save for a scant few.
2,100 BCE
- Amethyst emerges from the Alpha Kindergarten behind schedule.
1,100 BCE
- Persephone is abducted, resulting in Demeter's grief that wreaks havoc on all of Greece.
- Atlantis sinks beneath what would later become Santorini.
- Zagreus, god of blood and rebirth, is born as the son of Hades and Persephone.
500 CE
- Thanos is born on the planet Titan.
- Thor Odinson is born to King Odin and Queen Frigga.
1000 CE
- Loki Laufeyson is born as the child of the Jotun ruler, Laufey, only to be cast aside for being weak and frail by the standards of his people.
- Asgard wins the war against Jotunheim. Odin takes the abandoned Loki and adopts him as his son.
- The Asgardians meet with Earth's various pantheons at Mount Olympus, forming alliances.
- Titan falls to ruin, leaving Thanos as the only survivor. Thanos vows to prevent the fate of his home planet from happening again and begins to form the Black Order.
1200 CE
- The Forever Knights are established to protect from all non-human sentient life on Earth. Over the centuries, they expand this goal to eradicating extraterrestrials as well.
- The Black Order begins its quest with the decimation of Vilgaxia.
- An orphaned champion who took the name Vilgax challenges Thanos. Vilgax briefly attains victory, but Thanos breaks his code and wipes out all of his race in retaliation. Vilgax vows revenge against Thanos.
1426-1431 CE
- Jean d'Arc becomes the the wielder of the Ladybug Miraculous. Her martyrdom and execution at 19 led to Tikki becoming dormant for centuries.
1781 CE
- Peridot is created.
1918 CE
- Steven Grant Rogers is born.
1928 CE
- Hazel Levesque is born as daughter of the Roman god, Pluto.
1930 CE
- Bianca di Angelo is born as daughter to the Greek god, Hades.
- Nick Fury is born.
1932 CE
- Nico di Angelo is born as son to the Greek god, Hades.
1939 CE
- WWII begins
1940 CE
- Maxwell Tennyson is born.
- The Nazis defeat France. The Agreste family begins working with HYDRA by developing uniforms and armor for their soldiers in exchange for protection.
1942 CE
- Steve Rogers is chosen by Doctor Abraham Erskine to be the recipient of the Super Soldier Serum, becoming Captain America.
- Alcyoneus' rise is halted by Hazel's sacrifice.
1945 CE
- James "Bucky" Barnes is reported as MIA and presumed dead. Unknown to others, he is retrieved by a HYDRA cell and turned into the Winter Soldier.
- Captain America reported dead after defeating the Red Skull and crashing the Valkyrie aircraft to prevent the destruction of the eastern seaboard.
1948 CE
- Bardock is born to the Saiyan lower classes.
1950 CE
- Margret "Peggy" Carter, Howard Stark, and Chester Phillips found SHIELD and absorb the SSR into the organization's research division.
- Nick Fury and Abigail Brand are exposed to an artifact left behind by the Red Skull which slows down their aging rates.
1951 CE
- Lilith Clawthorne is born on the Boiling Isles.
1953 CE
- Gine is born to the Saiyan middle class.
- Stanley and Stanford Pines are born.
- Edalyn Clawthorne is born on the Boiling Isles.
1965 CE
- The SSR division of SHIELD that would become SWORD launches the first attempt at an interplanetary ship with Max Tennyson as the pilot.
- Max is captured by the Kree blockade orbiting Earth, but he escapes and stumbles upon the Omnitrix, becoming the first human wielder of it.
- Max quickly masters the Omnitrix and forces the Kree out of the Solar System. He ventures into the stars and forges his own path as a hero.
1967 CE
- Autobot scout B-127 crashes on Earth and hastily adopts a local vehicular form before shutting down for critical self-repair.
- Gabriel Agreste is born.
1975 CE
- Following his final confrontation with Vilgax, Max Tennyson renounces the Omnitrix and retires, returning to Earth with his wife, Verdona.
- Stanley Pines and Edalyn Clawthorne (under the alias of Marilyn) meet and briefly marry in Vegas.
- James "Rhodey" Rhodes is born.
1977 CE
- Emilie Graham de Vanilie, later Agreste, is born.
- Anthony Edward "Tony" Stark is born.
- The supervillain known as Arcade begins hosting annual death games called Murderworlds. He will fight the X-Men on multiple occasions.
1980 CE
- The absence of the Omnitrix and the acquisition of the Mind stone emboldens Thanos' decimation across the galaxy.
- Becoming aware of Thanos' actions, Verdona leaves Earth and her family to rejoin the Nova Corps to counter the Black Order.
- Robert Bruce Banner is born.
- Peter Jason Quill is born.
1981 CE
- Stanford Pines is sent into another dimension after a fight with his brother. Stanley assumes his twin's identity and begins a decades-long quest to bring him home.
1982 CE
- Charlotte "Charlie" Watson is born.
1983 CE
- Raditz, firstborn son of Bardock and Gine, is born.
1984 CE
- Natalia Alianovna Romanova, aka Natasha Romanoff, is born.
- Clinton Francis Barton is born.
1985 CE
- Virginia "Pepper" Potts is born.
- Caline Bustier is born.
- Thalia Grace is born as the daughter of the Greek god Zeus.
- Max Tennyson discovers the Trollmarket and helps Kanjigar the Courageous fend off the Forever Knights.
1986 CE
- Prince Vegeta IV is born.
- Bulma Briefs is born on planet Xandar.
1987 CE
- Broly is born on planet Sakaar.
- Harry Potter is born.
1988 CE
- Kakarot (later Son Goku) is born on the planet Vegeta.
- Daisy "Skye" Johnson is born.
- Jasmine Fenton is born.
- Carol Danvers is shot down in a test flight of a FTL-capable starfighter by members of StarForce during an assassination attempt on Mar-Vell.
- Carol is infused with the Space Stone's energy after attempting to destroy the FTL drive.
- Yon-Rogg takes Carol back to the Kree Empire and infuses her with his blood.
- Carol, now suffering amnesia, is given the name Vers and is inducted into the Kree Empire.
- Yondu Udonta abducts Peter Quill under orders from the Celestial, Ego, but goes against them and raises the human as his own.
- Lord Voldemort attempts to kill the infant Harry in order to prevent the prophecy that Harry will cause his downfall. His killing curse instead backfires and destroys Voldemort's body, leaving him a disembodied spirit. With her parents dead, Harry is raised by her Muggle relatives, who raise her as a boy to help further hide her from Voldemort's loyalists.
1990 CE
- Daniel Fenton is born.
- Samantha Manson is born.
- Tucker Foley is born.
- Natalia Romanova is abducted for the Red Room program.
1991 CE
- Lila Rossi is born.
- Annabeth Chase is born as daughter to the Greek goddess Athena.
- Perseus "Percy" Jackson is born as son to the Greek god Poseidon.
1992 CE
- Frank Zhang is born as the son of the Roman god Mars.
- Jason Grace is born as the son of the Roman god Jupiter.
- Piper McLean is born as the daughter of the Greek goddess Aphrodite.
- Leonidas "Leo" Valdez is born as the son of the Greek god Hephaestus.
- While pursuing a Cluster scout ship, S.W.O.R.D. agent Nora Wakeman is dragged through its FTL portal to crash-land on Cluster Prime. After hiding for a week she is eventually able to escape back to Earth after infiltrating Vexus' palace and stealing a prototype superweapon.
1993 CE
- Carter Kane is born.
1994 CE
- Vers crash-lands on Earth and rediscovers who she is, later foiling the Kree's plot to obtain the Tesseract and forces their blockade away from the planet.
- Bardock loses the use of his legs foiling an attempted assassination against Prince Vegeta IV. He and his family relocate to Xandar in his retirement.
- Carol, now known as Captain Marvel, wipes out Lord Frieza's forces as well as Frieza himself when he attempts to take over of the planet Vegeta.
- James Lake Jr. is born.
- Claire Nunez is born.
- Tobias Domzalski is born.
1995 CE
- Kevin Ethan Levin is born.
- Gwendolyn Tennyson is born.
- Luka Couffaine is born.
- Caulifla is born on the planet Xandar.
- Kale is born on the planet Sakaar.
- Sadie Kane is born.
1997 CE
- Peter Benjamin Parker is born.
- Gwendolyne Maxine Stacy is born.
- Chloe Bourgeois is born.
- Marinette Dupain-Cheng is born.
- Adrien Agreste is born.
- Alya Cesaire is born.
- Nino Lahiffe is born.
- Kagami Tsurugi is born.
- Juleka Couffaine is born.
- Benjamin Kirby Tennyson is born.
- Juliet "Julie" Yamamoto is born.
- Twins Mabel and Mason "Dipper" Pines are born.
- Luz Noceda is born.
- For the first time, two people survive Murderworld. Incensed by this, Arcade ceases activity.
1999 CE
- Rose Quartz gives up her physical form to birth her son, Steven Quartz Universe.
2000 CE
- Connie Maheswaran is born.
- Prince Vegeta IV weds the Capsule Corp heiress, Dr. Bulma Briefs.
- Hinobi Games discovers that something in their consoles is causing video game characters to come to life in the real world, known as Glitches. To combat them and protect the company's public image, Hinboi creates the Glitch Techs, teams of highly skilled gamers who can fight the Glitches and also cover up all evidence of them.
2001 CE
- Caline Bustier become the bearer of the Butterfly Miraculous.
- Voldemort is restored to his physical form and rejoined by his Death Eater followers, beginning the Second Wizarding War.
2004 CE
- Kara Zor-El crash lands on Earth after travelling through the Phantom Zone.
- Daniel Fenton survives the activation of the Ghost Zone portal and becomes a ghost/human hybrid. He goes on to protect Amity Park as the local hero, Danny Phantom.
- Percy Jackson learns of his demigod nature and takes on a quest to stop the resurrection of the Titan Kronos.
- The Second Titanomachy begins.
- The Second Wizarding War ends with the Battle of Hogwarts, wherein Harry and her allies kill Voldemort for good and defeat the Death Eaters.
2005 CE
- Charlie Watson discovers the dormant Autobot B-127 and restores him to life. Amnesiac, he is given the name "Bumblebee" and his reactivation signals Decepticons Shatter and Dropkick, whom he later defeats with Charlie's help.
- Danielle, a clone of Danny Fenton, is created.
- Nico and Bianca di Angelo are rescued from Westover Hall.
- Bianca dies.
2006 CE
- Son Goku weds Chi-Chi.
- Son Gohan is born on the planet Xandar.
2007 CE
- The damaged Peacock Miraculous forces Emilie Agreste into a coma. Her body is preserved in the same cryo-technology used in the Winter Soldier program.
- The Butterfly Miraculous is stolen from Caline Bustier
- The Olympians win the second Titanomachy.
- The Second Giant War begins.
- After years of failure to create her own AI with her XJ series of robots, Nora uses the stolen Cluster superweapon as a basis for XJ-9, who upon becoming self-aware names herself Jenny and identifies Nora as her mother. Worried about what might happen if anyone learns about Jenny's origins, Nora has her stay isolated at home, and only spend limited time outside while wearing an exo-suit that allows her to pass for human.
2008 CE
- Trunks Briefs is born on planet Xandar.
- Danny Phantom retires from his heroics after the death of Vlad Plasmius' human self in their final battle.
- The unified Greek and Roman demigods and gods win the Second Giant War.
2009 CE
- Bular, son of Gunmar the Black, kills Kanjigar.
- James Lake Jr. finds Merlin's amulet and becomes the first human Trollhunter. He later ventures into the Darklands and becomes trapped on the other side.
2010 CE
- A SWORD mission to Kerberos goes wrong as a Galra cruiser abducts the crew in search of the whereabouts of the Voltron Lions.
- Tony Stark is held hostage in Afghanistan and forced to make weaponry for the Ten Rings. Instead, he escapes by creating a suit of battle armor that would become the prototype for the Iron Man suit.
- Bill Cipher almost breaches the dimensional barriers in Gravity Falls, Oregon, but is stopped by the Pines family and the rest of town's citizens before being destroyed. Feeling guilty for having been unable to intervene, the Masters of the Mystic Arts provide Dipper with a Sling Ring so that he can call for help in any future emergencies.
- Son Goten is born on planet Xandar.
2011 CE
- Mary and Richard Parker are killed at the Stark Expo during the Hammer drones' attack, leaving their son, Peter, alone to be taken in by his aunt and uncle, May and Benjamin Parker.
- Thor Odinson slaughters hundreds of Jotun in an attack on their homeworld, resulting in his banishment to Earth. After learning humility and thus proving himself worthy of regaining his powers and status, he returns to Asgard in time to stop Loki from wiping out the Frost Giants in a fit of madness from learning his true heritage. Defeated, Loki flees Asgard, and is eventually recruited by the Black Order.
- Luz Noceda stumbles upon the Boiling Isles and becomes apprentice to Edalyn Clawthorne. Early into this apprenticeship, she joins Eda in traveling to Gravity Falls to exchange collectable junk with Stan, in the process meeting and befriending the rest of the Pines family.
2012 CE
- Commander Jane Shepard and EDI are pulled out of their own universe into Earth-199999, ending up on Sakaar. Traveling the galaxy, they establish a mercenary company, with Shepard also joining the Bounty Hunters Guild, in order to make money to fund research into finding a way home.
- The Voltron Lions are reunited and the Defender of the Universe is reactivated by five humans who awakened Princess Allura and Coran.
- Thanos learns of the Tesseract's location and sends Loki to retrieve it, arming him with a staff bearing the Mind Stone.
- Loki, serving as an emissary of the Black Order, uses the Tesseract to call forth a portion of their army to invade Earth.
- The Avengers form in response to the invasion of the Black Order's army and repel the attack, saving the planet in what became known as the Battle of New York.
- Kara Danvers joins the Avengers as Supergirl, becoming the first new recruit. Her first major mission involves investigating suspicious activity at OsCorp, uncovering ties to the criminal conspiracy Project Centipede and Doctor Victor von Doom, who overwhelms the Avengers in battle but lets them live.
- Ben Tennyson becomes the newest bearer of the Omnitrix, drawing Vilgax and many bounty hunters to Earth. This culminates in Vilgax launching a full invasion of Arcadia Oaks, where he is barely defeated by the combined forces of Ben, his friends, and the Avengers, and is sealed in Petrosapien crystal for the foreseeable future.
- With the Omnitrix and the bounty on it reactivated, Max and Verdona hire Shepard to discretely protect Ben from other bounty hunters.
- On the Nova Empire member world Arkidion-V, General Val Morando stages a coup, killing the king and queen. The young prince Krel and princess Aja, along with their bodyguard Vorvatos Vex, flee the planet and make their way to Earth. Learning of this, Captain Marvel alerts S.W.O.R.D., who in turn alert Ben and task him with watching over the young royals while they're on Earth.
- Hawk Moth begins to terrorize Paris, using the Butterfly Miraculous to transform people into Akuma. In response, Marinette Dupain-Cheng and Adrian Agreste are chosen as the bearers of the Ladybug and Black Cat Miraculouses, becoming Ladybug and Cat Noir to fight the Akuma. Shortly after their debut, Chloe Bourgeois has an epiphany regarding her bullying ways, and is chosen to bear the Bee Miraculous, becoming the hero Queen Bee.
- Nico di Angelo is given the task to help Doctor Stephen Strange in forming a team to protect the mythical world. His first recruit is Danielle/Ellie, who has grown dissatisfied with fighting ghosts in Amity Park as Danny's unappreciated replacement.
- Strange summons Kara, Bruce, and Thor to the Sanctum Sanctorum to aid him in tracking down Doom. After determining that he's hiding in a portion of the Labyrinth underneath New York, the four of them — along with Nico and Ellie — enter it and confront Doom and his allies, which include Hercules, Hecate, and a cult of Egyptian magicians known as the Faceless. While the others fight Doom's allies, Kara is taken aside by Doom and Reed Richards, who explain how they have been rewriting reality to try and create a timeline where the heroes are capable of preventing Thanos from gathering the Infinity Stones.
- After recovering from the battle in the Labyrinth, Strange's team travels to Hogwarts to try and recruit Harry. However, she flatly refuses the offer, having had enough of conflict.
- Dipper is caught using his Sling Ring to sneak into the library of the New York Sanctum to study Eldritch magic. Noting that this shows him to have great potential, Strange recruits him to the team.
- Tony attends the SFIT showcase, where he is deeply impressed by Hiro Hamada's microbot display, and is able to save Tadashi Hamada's life during the fire that consumes the hall. At the boys' aunt Cass' insistence, he decides to investigate the fire.
- The Paladins of Voltron assist a Homeworld Gem colony in repelling a Galra fleet, but are forced to retreat from Yellow Diamond's wrath.
- The Paladins accidentally keep a poofed Ruby.
- Avid gamers Hector "Hi 5" Nieves and Miko "Me KO" Kubota are recruited by the Glitch Techs.
- Jenny meets and befriends her neighbors Brad and Tucker Carbunkle, but in the process her existence is discovered by S.W.O.R.D., causing the World Security Council to order her either terminated or exiled off-planet to prevent provoking the Cluster into invading. Instead, Director Brand decides to recommission Nora and recruit Jenny as an agent, in order to build an Avengers equivalent to focus on space-based threats.
2013 CE
- Emperor Zarkon is slain in battle by the Paladins of Voltron. Their leader, Takashi "Shiro" Shirogane, vanishes without a trace immediately after the battle.
- The poofed Ruby reforms and asks to be returned. In the process of trying to do so, the Paladins work with Moonstone, who is acting as an agent of the Collector. They return Ruby to a Gem colony, but ultimately have to save her when the other Gems reject her. After escaping, they intercept an Altean distress signal that directs them to Etheria.
- Caulifla and Kale become the first Saiyan fusion in history and take the name of Kefla.
