1st team appearance of the Suicide Squad: Rick Flag, Jess Bright, Karin Grace, Hugh Evans

The first iteration of the Suicide Squad preceded the formation of the Justice League of America by three issues

1st team appearance of the Metal Men: Iron, Gold, Lead, Mercury, Platinum and Tin

1st appearance of Dr. Magus

[December 2021 - Ron Clements and John Musker (The Little Mermaid/Aladdin) are developing an animated feature of Metal Men for DC]

1st team appearance and origin of Doom Patrol: Chief, Negative Man, Elasti-Girl, Robotman

1st team appearance of the Teen Titans: Aqualad, Kid Flash, Robin

The team name Teen Titans isn't coined until Brave and the Bold #60

1st appearance of Mr. Twister, possesses a stick that controls the weather

1st team appearance of The Warriors Three: Volstagg, Fandral and Hogun

2nd appearance of the Destroyer

1st team appearance and origin of the Guardians of the Galaxy

1st appearance of Major Vance Astro

1st appearance of Charlie-27

1st appearance of Martinex

1st appearance of Yondu

Black Knight joins the Avengers

1st unofficial team appearance of the Invaders: Captain America, Human Torch and Sub-Mariner

1st appearance of Valkyrie, Enchantress in disguise

1st team appearance of the Lady Liberators: Valkyrie, Scarlet Witch, Wasp, Black Widow, Medusa

Debut of the Rutland Halloween Parade, a real parade held in Vermont annually that has been depicted in both Marvel and DC comics nearly 20 times with parade attendees wearing superhero costumes from both publishers in each book

1st full appearance of Darkseid

1st team appearance of The Forever People: Beautiful Dreamer, Mark Moonrider, Serifan, Big Bear, Vykin the Black

First mention of Mother Boxes, sentient supercomputers of vast power and the Anti-Life Equation

1st appearance of Infinity-Man, a protector of The Forever People

1st team appearance and origin of The Defenders: Doctor Strange, Hulk, Sub-Mariner

First solo title featuring The Defenders

1st appearance of Necrodamus, a sorcerer

1st team appearance and origin of The Champions: Angel, Black Widow, Ghost Rider, Hercules, Iceman

1st partial team appearance and origin of The Eternals and The Deviants

1st appearance of Ikaris

1st appearance of Kro and Brother Tode, Deviants and enemies of The Eternals

1st appearance of Margo Damian

1st appearance of Corsair, father of Cyclops, Havok and Vulcan

1st appearance of Ch'od, a member of the Starjammers

2nd cameo appearance of Lilandra

First mention of Mutant X aka Proteus

1st full team appearance of Alpha Flight: Aurora, Northstar, Sasquatch, Snowbird, Shaman, and Vindicator, formerly Weapon Alpha

1st team appearance of the All Star Squadron: Liberty Belle, Johnny Quick, Robotman, Commander Steel, Danette Reilly - later becomes the second Firebrand

Origin of Red Tornado

1st appearance and origin of Cloak & Dagger

1st team appearance of New Mutants: Cannonball (1st), Psyche (1st), Wolfsbane (1st), Sunspot (1st), Karma

Psyche aka Dani Moonstar later becomes Mirage

1st appearance of the White Rook, a member of the Hellfire Club

1st team appearance of Power Pack

1st team appearance and origin of the West Coast Avengers: Hawkeye, Iron Man (Rhodes), Wonder Man, Mockingbird and Tigra

[June 2022 - a Wonder Man series could lead to a West Coast Avengers team]

1st team appearance of X-Factor: Cyclops, Jean Grey, Beast, Iceman, Angel

1st appearance of Cameron Hodge, a human who passionately hated mutants

1st appearance a Rusty Collins, a mutant with the ability to manipulate fire

Premiere issue of a 12-issue series that explores the dark side of superheroes from a realistic, flawed perspective

1st appearance of Rorschach, Dr. Manhattan, Ozymandias, Silk Spectre, The Comedian and Night Owl

Alan Moore based his characters off of DC's newly acquired Charlton heroes: The Question, Captain Atom, Thunderbolt, Nightshade, The Peacemaker and Blue Beetle

1st team appearance of Excalibur: Captain Britain, Meggan, Rachel Summers as Phoenix, Kitty Pryde, Lockheed, Nightcrawler

Note: there are two first print versions: the version pictured here is more scarce and doesn't display a price on the cover. The other shows a price of $3.25

Everything $3.50 and above are later printings

1st team appearance of the Great Lake Avengers: Big Bertha, Dinah Soar, Doorman, Flatman and Mr. Immortal

[September 2022 - Mr. Immortal appeared in the She-Hulk series]

1st full team appearance of the New Warriors: Firestar, Kid Nova, Marvel Boy, Namorita, Night Thrasher and Speedball

1st full appearance of Night Thrasher

1st team appearance of X-Force: Cable, Shatterstar, Feral, Cannonball, Boom Boom, Domino, Warpath

The New Mutants become X-Force, renamed by Cable

Stryfe is revealed to be a clone of Cable

1st team appearance of the Renegades, Harbinger Resistance Group

1st appearance of Sting, Peter Stanchek

1st appearance of Zephyr, Faith Herbert

1st appearance of Torque, Flamingo and Kris

1st team appearance of the Eggbreakers

Included in issues #1 - #6 was a Mail Away Coupon that, collectively, were redeemable for a variant of Harbinger #0 with a pink cover

[February 2022 - Deadline reports reports Wes Ball to direct for Paramount]

First comic book published by Image

1st appearance of Shaft

1st appearance of Chapel

1st appearance of Badrock

1st appearance of Vogue, Link and Diehard

1st appearance of Obadiah Archer

1st appearance of Armstrong (immortal brother of the Eternal Warrior & Ivar)

1st team appearance of WildC.A.T.S. (Covert Action TeamS)

1st appearance of Spartan

1st appearance of Grifter

1st appearance of Voodoo, Priscilla Kitaen

1st appearance of Zealot

1st appearance of Void, Maul, Warblade, Lord Emp, Pike and Helspont

1st cameo team appearance of The Nine aka the Midnight Sons: Ghost Rider(Ketch), Johnny Blaze, Morbius, Blade, Hannibal King, Frank Drake, Sam Buchanan, Victoria Montesi, Louise Hastings

1st appearance of the Caretaker

1st appearance of Lilith, mother of demons

1st appearance of Meatmarket, offspring of Lilith

[July 2021 - reports that Marvel registered the LLC, Richmond Street Productions for a streaming series leading speculators to believe that it is a reference to the location of the cemetery where Dan Ketch was resurrected as the Ghost Rider / July 2022 - Midnight Sons was trademarked by Marvel along with other titles that are proven to be official]

1st team appearance of Gen 13: Caitlin Fairchild, Burnout, Freefall, Grunge, Lynch, Rainmaker

1st team appearance of Force Works: Spider-Woman, Wonder Man, Iron Man, Scarlet Witch, U.S. Agent

1st appearance of The Century, an alien made up of the 100 strongest residents from his home planet

Force Works continued from the Avengers West Coast

Wraparound, fold-out cover

1st team appearance of Clan Destine, a family of mystics: Crimson Crusader, Imp, Hex, Wallop, Cuckoo, Argent, Newton aka Warlord

1st team appearance of Generation X

1st team appearance of The Thunderbolts: Citizen V (formerly Baron Zemo), Atlas (formerly Goliath), Mach-1 (formerly Beetle), Songbird (formerly Screaming Mimi), Meteorite (formerly Moonstone II) and Techno (formerly Fixer)

[February 2019 - 🚨 KEY COLLECTOR COMICS EXCLUSIVE - a Thunderbolts series is in development]

[SDCC 2022 - Thunderbolts will conclude Marvel’s Phase 5 in July 2024]

Black and white preview of Quantum and Woody's first appeareance

1st team appearance of Young Justice: Robin, Superboy, Impulse

1st appearance of the Secret, a girl with the ability to become intangible

Early team appearance of Big Hero 6: Baymax, GoGo Tomago, Honey Lemon, Manbot, Silver Samurai, Sunfire

Six-issue limited series featuring a super-team of classic literature characters that include: Allan Quatermain, Mina Harker, Dr. Jekyll, the Invisible Man and Captain Nemo

[May 2022 - a new adaptation is in the works by 20th Century Fox]

1st team appearance of the Exiles, an often alternating roster of out-of-place heroes from different dimensions

1st appearance of Morph, a character who transforms into other characters for comedic effect

1st full appearance of Nocturne, the daughter of Nightcrawler from an alternate reality

1st appearance of the Timebroker, the entity who gathered the Exiles together

1st team appearance of the Runaways: Alex Wilder, Karolina Dean aka Lucy in the Sky, Molly Hayes aka Bruiser, Nico Minoru aka Sister Grimm, Chase Stein aka Talkback, Gertrude Yorkes aka Arsenic

1st team appearance of the Pride

[July 2022 - Marvel recently trademarked the title Runaways: New Era]

1st team appearance of the Illuminati: Professor X, Doctor Strange, Black Bolt, Iron Man, Namor

1st full team appearance of The Seven: Homelander, Starlight, Black Noir, A-Train, Queen Maeve, Jack From Jupiter (1st), The Deep (1st)

1st full team appearance of Teenage Kix: Big Game, Dogknott, Popclaw, Shout Out, Whack Job, Gunpowder, Blarney Cock, Jetstreak

Written by Gerard Way, frontman of My Chemical Romance

Free Comic Book Day 2007 giveaway

1st team appearance of the Umbrella Academy: The Monocle (Sir Reginald Hargreeves), Spaceboy (Luther), Kraken (Diego), The Rumor (Allison),The Séance (Klaus), The Horror (Ben), Vanya

1st appearance of The Murder Magician

[Adapted for a Netflix TV series, premiered February 2019]

1st team appearance of the Mighty Avengers: Ares, Black Widow, Iron Man, Ms. Marvel, Sentry, Wasp

1st team appearance of the new Guardians of the Galaxy: Star-Lord, Rocket Raccoon, Quasar, Adam Warlock, Gamora, Drax the Destroyer and Groot

1st full appearance of the Dark Avengers: Norman Osborn as Iron Patriot, Noh-Varr as Captain Marvel, Daken as Wolverine, Mac Gargan/Venom as Spider-Man, Bullseye as Hawkeye, Moonstone as Ms. Marvel, Sentry and Ares

First mention of H.A.M.M.E.R., the government organization that replaces S.H.I.E.L.D. under the leadership of Norman Osborn

[April 2021 - speculation that the Contessa is recruiting an Avengers-like team]

1st team appearance of the Mighty Avengers: Luke Cage, Spider-Man (Octavius), Spectrum and Spider-Hero

1st appearance of Blade as Spider-Hero

Monica Rambeau becomes Spectrum, formerly Photon, Pulsar and the second Ms. Marvel

1st cameo appearance of Singularity

1st unofficial team appearance of A-Force, team officially named in A-Force #4