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Uncanny X-Men #1
Marvel
•
1963
•
Vol. 1
1st team appearance of the X-Men: Cyclops, Jean Grey aka Marvel Girl, Iceman, Angel, Beast, Professor X
1st appearance of Magneto
Homo Superior concept, coined by Magneto to describe humans born with special abilities introduced in this issue
1st team appearance of the X-Men: Cyclops, Jean Grey aka Marvel Girl, Iceman, Angel, Beast, Professor X
1st appearance of Magneto
Homo Superior concept, coined by Magneto to describe humans born with special abilities introduced in this issue
Uncanny X-Men #4
Marvel
•
1964
•
Vol. 1
1st team appearance of the Brotherhood of Evil Mutants led by Magneto
1st appearance of Scarlet Witch
1st appearance of Quicksilver
1st appearance Mastermind, later becomes Jason Wyngarde
1st appearance of Toad
2nd appearance of Magneto
Although the Scarlet Witch's costume is colored green on the cover, it is red in the story
First interaction between Charles Xavier and Magneto, though their origins have since been retconned to have them meet earlier in their lives
1st team appearance of the Brotherhood of Evil Mutants led by Magneto
1st appearance of Scarlet Witch
1st appearance of Quicksilver
1st appearance Mastermind, later becomes Jason Wyngarde
1st appearance of Toad
2nd appearance of Magneto
Although the Scarlet Witch's costume is colored green on the cover, it is red in the story
First interaction between Charles Xavier and Magneto, though their origins have since been retconned to have them meet earlier in their lives
Uncanny X-Men #120
Marvel
•
1979
•
Vol. 1
1st cameo team appearance of Alpha Flight: Sasquatch, Aurora, Northstar, Shaman, Snowbird
[June 2020 - Alpha Flight rumored to make an appearance in the MCU]
1st cameo team appearance of Alpha Flight: Sasquatch, Aurora, Northstar, Shaman, Snowbird
[June 2020 - Alpha Flight rumored to make an appearance in the MCU]
Uncanny X-Men #129
Marvel
•
1980
•
Vol. 1
The Dark Phoenix Saga Part 1
1st appearance of Kitty Pryde
1st appearance of Emma Frost, the White Queen
1st cameo team appearance of The Hellfire Club, in shadows
[January 2024 - Kitty Pryde rumored for the X-Men MCU reboot according to a casting grid]
The Dark Phoenix Saga Part 1
1st appearance of Kitty Pryde
1st appearance of Emma Frost, the White Queen
1st cameo team appearance of The Hellfire Club, in shadows
[January 2024 - Kitty Pryde rumored for the X-Men MCU reboot according to a casting grid]
Marvel Graphic Novel #4
Marvel
•
1982
•
Vol. 1
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 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
Alpha Flight #1
Marvel
•
1983
•
Vol. 1
1st appearance of Puck, a superb fighter with no mutant powers
1st appearance of Marrina, wife of Namor
1st appearance of Tundra, a member of the Great Beasts
1st appearance of Madison Jeffries
1st cameo appearance of Wild Child
1st cameo team appearance of Gamma Flight, a team training to rise the ranks through Beta Flight to Alpha Flight
1st appearance of Puck, a superb fighter with no mutant powers
1st appearance of Marrina, wife of Namor
1st appearance of Tundra, a member of the Great Beasts
1st appearance of Madison Jeffries
1st cameo appearance of Wild Child
1st cameo team appearance of Gamma Flight, a team training to rise the ranks through Beta Flight to Alpha Flight
New Mutants #16
Marvel
•
1984
•
Vol. 1
1st appearance of James Proudstar, the second Thunderbird, later becomes Warpath
1st team appearance of the Hellions, led by Emma Frost: Roulette, Empath, Jetstream, Tarot, Thunderbird, Catseye
1st appearance of James Proudstar, the second Thunderbird, later becomes Warpath
1st team appearance of the Hellions, led by Emma Frost: Roulette, Empath, Jetstream, Tarot, Thunderbird, Catseye
Uncanny X-Men #199
Marvel
•
1985
•
Vol. 1
1st appearance of Rachel Summers as the second Phoenix
The Brotherhood of Evil Mutants becomes the Freedom Force: Mystique, Blob, Destiny, Spiral, Avalanche and Pyro
1st appearance of Rachel Summers as the second Phoenix
The Brotherhood of Evil Mutants becomes the Freedom Force: Mystique, Blob, Destiny, Spiral, Avalanche and Pyro
X-Factor #1
Marvel
•
1986
•
Vol. 1
1st team appearance of X-Factor, the original X-Men: Cyclops, Jean Grey, Beast, Iceman, Angel
1st appearance of Cameron Hodge, a human who passionately hated mutants
1st appearance of Rusty Collins, a mutant with the ability to manipulate fire
[January 2026 - an X-Factor project is rumored to be in development at Marvel Studios]
1st team appearance of X-Factor, the original X-Men: Cyclops, Jean Grey, Beast, Iceman, Angel
1st appearance of Cameron Hodge, a human who passionately hated mutants
1st appearance of Rusty Collins, a mutant with the ability to manipulate fire
[January 2026 - an X-Factor project is rumored to be in development at Marvel Studios]
Uncanny X-Men #210
Marvel
•
1986
•
Vol. 1
1st cameo team appearance of The Marauders: Arclight, Harpoon, Riptide, Vertigo, Scalphunter aka John Greycrow, Scrambler
This cover was later reprinted for a trade paperback collection but digitally augmented to remove the cigar that Wolverine was smoking
1st cameo team appearance of The Marauders: Arclight, Harpoon, Riptide, Vertigo, Scalphunter aka John Greycrow, Scrambler
This cover was later reprinted for a trade paperback collection but digitally augmented to remove the cigar that Wolverine was smoking
X-Men Annual #10
Marvel
•
1987
•
Vol. 1
1st appearance of the X-Babies, the X-Men transformed into children
Later official 1st appearance in X-Men Annual #12
Longshot joins the X-Men
1st appearance of the X-Babies, the X-Men transformed into children
Later official 1st appearance in X-Men Annual #12
Longshot joins the X-Men
Fallen Angels #2
Marvel
•
1987
•
Vol. 1
1st appearance of Gomi, a cyborg with two cybernetically-enhanced lobsters
1st appearance of Bill and Don the lobster
1st appearance of Gomi, a cyborg with two cybernetically-enhanced lobsters
1st appearance of Bill and Don the lobster
Excalibur Special Edition #1
Marvel
•
1988
•
Vol. 1
1st team appearance of Excalibur: Captain Britain, Meggan, Rachel Summers as Phoenix, Kitty Pryde, Lockheed, Nightcrawler
Back cover appearance of Widget who is later introduced in Excalibur #1 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 Excalibur: Captain Britain, Meggan, Rachel Summers as Phoenix, Kitty Pryde, Lockheed, Nightcrawler
Back cover appearance of Widget who is later introduced in Excalibur #1 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
X-Terminators #1
Marvel
•
1988
•
Vol. 1
1st team appearance of The X-Terminators: Boom Boom, Rictor, Rusty Collins, Skids, Leech, Artie Maddicks, Wiz Kid (1st)
1st team appearance of The X-Terminators: Boom Boom, Rictor, Rusty Collins, Skids, Leech, Artie Maddicks, Wiz Kid (1st)
New Mutants #100
Marvel
•
1991
•
Vol. 1
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 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
X-Men #1
Marvel
•
1991
•
Vol. 2
1st team appearance of the X-Men Gold (team): Storm, Archangel, Colossus, Iceman and Jean Grey
1st team appearance of the X-Men Blue (team): Cyclops, Wolverine, Gambit, Rogue, Psylocke and Beast
1st team appearance of The Acolytes: Fabian Cortez, Annie-Marie Cortez, Chrome, Nance Winters, Delgado
Best-selling comic of all-time with sales of 8.1 million copies
Interior pin-up by Jim Lee, 'A Villains Gallery'
1st team appearance of the X-Men Gold (team): Storm, Archangel, Colossus, Iceman and Jean Grey
1st team appearance of the X-Men Blue (team): Cyclops, Wolverine, Gambit, Rogue, Psylocke and Beast
1st team appearance of The Acolytes: Fabian Cortez, Annie-Marie Cortez, Chrome, Nance Winters, Delgado
Best-selling comic of all-time with sales of 8.1 million copies
Interior pin-up by Jim Lee, 'A Villains Gallery'
Uncanny X-Men #282
Marvel
•
1991
•
Vol. 1
1st cover and cameo appearance of Bishop, in final panel
1st cameo team appearance of the X.S.E., the Xavier Security Enforcers: Bishop, Malcolm, Randall
[October 2022 - Bishop to appear in the X-Men '97 animated series]
1st cover and cameo appearance of Bishop, in final panel
1st cameo team appearance of the X.S.E., the Xavier Security Enforcers: Bishop, Malcolm, Randall
[October 2022 - Bishop to appear in the X-Men '97 animated series]
X-Men 2099 #1
Marvel
•
1993
•
Vol. 1
1st team appearance of the X-Men 2099: Cerebra, Desert Ghost, Meanstreak, Serpentina, Krystalin, Fitzgerald, Metalhead
1st team appearance of the X-Men 2099: Cerebra, Desert Ghost, Meanstreak, Serpentina, Krystalin, Fitzgerald, Metalhead
Generation X #1
Marvel
•
1994
•
Vol. 1
Chromium
Wraparound
1st appearance of Chamber
1st appearance of Emplate, Marius St. Croix, a psychic vampire
1st cameo appearance of Penance, later revealed to be the real Monet St. Croix
Chromium wraparound cover
1st appearance of Chamber
1st appearance of Emplate, Marius St. Croix, a psychic vampire
1st cameo appearance of Penance, later revealed to be the real Monet St. Croix
Chromium wraparound cover
Gambit & the X-Ternals #1
Marvel
•
1995
•
Vol. 1
1st team appearance of the X-Ternals: Gambit, Jubilee, Strong Guy, Lila Cheney, Sunspot
📖 Reading Order: Age of Apocalypse
1st team appearance of the X-Ternals: Gambit, Jubilee, Strong Guy, Lila Cheney, Sunspot
📖 Reading Order: Age of Apocalypse
Factor X #1
Marvel
•
1995
•
Vol. 1
1st appearance of Bedlam, a mutant who can disrupt tech with psionic pulses
1st appearance of Christopher aka Terrence Aronson, brother of Jesse and a telepath
📖 Reading Order: Age of Apocalypse
1st appearance of Bedlam, a mutant who can disrupt tech with psionic pulses
1st appearance of Christopher aka Terrence Aronson, brother of Jesse and a telepath
📖 Reading Order: Age of Apocalypse
Ultimate X-Men #1
Marvel
•
2001
•
Vol. 1
1st team appearance of the Ultimate X-Men: Professor X, Marvel Girl, Cyclops, Storm, Colossus, Beast, Iceman
1st team appearance of the Ultimate X-Men: Professor X, Marvel Girl, Cyclops, Storm, Colossus, Beast, Iceman
X-Force #116
Marvel
•
2001
•
Vol. 1
1st team appearance of X-Statix: Coach, Anarchist, Battering Ram, Gin Genie, La Nuit, Plazm, Sluk, Zeitgeist, Doop, U-Go Girl
[March 2025 - supposed concept art leaked online depicting Doop for a potential MCU project but the legitimacy of the artwork being official is unknown - see additional images by tapping cover and swiping]
1st team appearance of X-Statix: Coach, Anarchist, Battering Ram, Gin Genie, La Nuit, Plazm, Sluk, Zeitgeist, Doop, U-Go Girl
[March 2025 - supposed concept art leaked online depicting Doop for a potential MCU project but the legitimacy of the artwork being official is unknown - see additional images by tapping cover and swiping]
X-Treme X-Men #1
Marvel
•
2001
•
Vol. 1
1st team appearance of the X-Treme X-Men: Storm, Beast, Bishop, Sage, Psylocke, Thunderbird (Shaara)
1st appearance of Vargas, the next step in human evolution
1st team appearance of the X-Treme X-Men: Storm, Beast, Bishop, Sage, Psylocke, Thunderbird (Shaara)
1st appearance of Vargas, the next step in human evolution
New X-Men #114
Marvel
•
2001
•
Vol. 1
1st appearance of Cassandra Nova, a parasite from the astral plane who replicated the DNA of Charles Xavier while still in utero
Beast appears with further animal mutations
Debut of new X-Men suits
1st appearance of Cassandra Nova, a parasite from the astral plane who replicated the DNA of Charles Xavier while still in utero
Beast appears with further animal mutations
Debut of new X-Men suits
Exiles #1
Marvel
•
2001
•
Vol. 1
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 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
Uncanny X-Men #401
Marvel
•
2002
•
Vol. 1
1st appearance of X-Corps: Avalanche, Blob, Radius, Multiple Man, Banshee
Not to be confused with X-Corporation, the X-Corps is akin to a security force, led by Banshee
1st appearance of X-Corps: Avalanche, Blob, Radius, Multiple Man, Banshee
Not to be confused with X-Corporation, the X-Corps is akin to a security force, led by Banshee
New X-Men: Academy X #12
Marvel
•
2005
•
Vol. 2
1st team appearance of the Paragons, a training squad: DJ, Match, Pixie, Preview (1st), Trance (1st), Wolf Cub, Specter
1st team appearance of the Paragons, a training squad: DJ, Match, Pixie, Preview (1st), Trance (1st), Wolf Cub, Specter
New X-Men: Academy X #23
Marvel
•
2006
•
Vol. 2
1st appearance of Gentle, a mutant from Wakanda
1st team appearance of a new, New X-Men roster: X-23, Dust, Mercury, Rockslide, Surge, Hellion, Elixir
Cover art inspired by Uncanny X-Men #171 (1983)
1st appearance of Gentle, a mutant from Wakanda
1st team appearance of a new, New X-Men roster: X-23, Dust, Mercury, Rockslide, Surge, Hellion, Elixir
Cover art inspired by Uncanny X-Men #171 (1983)
Uncanny X-Men #493
Marvel
•
2008
•
Vol. 1
1st team appearance of new X-Force roster: Wolverine, X-23, Warpath, Caliban, Hepzibah, Wolfsbane
1st team appearance of new X-Force roster: Wolverine, X-23, Warpath, Caliban, Hepzibah, Wolfsbane
Young X-Men #1
Marvel
•
2008
•
Vol. 1
1st team appearance of the Young X-Men: Dust, Rockslide, Blindfold, Wolf Cub, Ink
1st appearance of Ink, a human powered by tattoos applied by a mutant
1st appearance of Jonas Graymalkin, a mutant with indestructible form whose powers increase in the dark
1st team appearance of the Young X-Men: Dust, Rockslide, Blindfold, Wolf Cub, Ink
1st appearance of Ink, a human powered by tattoos applied by a mutant
1st appearance of Jonas Graymalkin, a mutant with indestructible form whose powers increase in the dark
X-Men: Second Coming #2
Marvel
•
2010
•
Vol. 1
1st team appearance of X-Force: Archangel, Wolverine, Psylocke, Fantomex, E.V.A., Deadpool
1st team appearance of X-Force: Archangel, Wolverine, Psylocke, Fantomex, E.V.A., Deadpool
Marvel Point One #1
Marvel
•
2011
•
Vol. 1
1st appearance of Nova, Sam Alexander
1st appearance of Kaine as the Scarlet Spider
1st appearance of Dragonfire and Coldmoon
Death of Terrax the Tamer
1st team appearance of X-Terminated: Horror Show, Fiend, Deadeye, Prophet, Goodnight
Debut of Doctor Strange from an alternate Earth with new costume design
[March 2022 - Deadline reports a Nova project is in development]
1st appearance of Nova, Sam Alexander
1st appearance of Kaine as the Scarlet Spider
1st appearance of Dragonfire and Coldmoon
Death of Terrax the Tamer
1st team appearance of X-Terminated: Horror Show, Fiend, Deadeye, Prophet, Goodnight
Debut of Doctor Strange from an alternate Earth with new costume design
[March 2022 - Deadline reports a Nova project is in development]
Weapon X #22
Marvel
•
2018
•
Vol. 3
1st team appearance of Weapon X-Force: Sabretooth, Domino, Lady Deathstrike, Omega Red and Mystique
1st team appearance of Weapon X-Force: Sabretooth, Domino, Lady Deathstrike, Omega Red and Mystique
Knights of X #1
Marvel
•
2022
•
Vol. 1
1st team appearance of the Knights of X: Captain Britain, Mordred, Kylun, Prestige, Bei the Blood Moon, Shogo Lee, Gambit, Rictor, Gloriana, Shatterstar
1st team appearance of the Knights of X: Captain Britain, Mordred, Kylun, Prestige, Bei the Blood Moon, Shogo Lee, Gambit, Rictor, Gloriana, Shatterstar
Legion of X #1
Marvel
•
2022
•
Vol. 1
1st appearance of Weaponless Zsen
1st appearance of Ora Serrata
1st appearance of Mother Righteous
1st appearance of Weaponless Zsen
1st appearance of Ora Serrata
1st appearance of Mother Righteous
Weapon X-Men #1
Marvel
•
2025
•
Vol. 2
Non-Key
1st team appearance of Weapon X-Men II: Wolverine, Deadpool, Cable, Chamber, Thunderbird
1st team appearance of Weapon X-Men II: Wolverine, Deadpool, Cable, Chamber, Thunderbird
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