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Jul 2nd, 1963
1st Appearance of The X-Men (Angel, Beast, Cyclops, Iceman, Marvel Girl, Professor X), 1st Appearance of Magneto
Sep 3rd, 1963
1st Appearance of the Vanisher 2nd Appearance of the X-Men (Angel, Beast, Cyclops, Iceman, Marvel Girl, Professor X) 1st Appearance of Fred Duncan
Jan 3rd, 1964
1st Appearance of Quicksilver (Pietro Maximoff) 1st Appearance of Scarlet Witch (Wanda Maximoff) 1st Appearance of Toad (Mortimer Toynbee) 1st Appearance of Mastermind (Jason Wyngarde), 1st Appearance of Brotherhood of Evil Mutants 2nd Appearance of Magneto
May 1st, 1964
1st Appearance of John and Elaine Grey 2nd Appearance of Quicksilver (Pietro Maximoff) 2nd Appearance of Scarlet Witch (Wanda Maximoff) 2nd Appearance of Toad (Mortimer Toynbee) 2nd Appearance of Mastermind (Jason Wyngarde), 2nd Appearance of Brotherhood of Evil Mutants 3rd Appearance of Magneto
Sep 1st, 1964
1st Appearance of Unus the Untouchable (Gunther Bain) 1st Iceman in transparent Ice form 1st time Humans attack Mutants
Nov 3rd, 1964
1st Meeting of The X-Men & Avengers 1st Appearance of Lucifer 1st Appearance of Quists
Jan 5th, 1965
1st Appearance of Silver Age Ka-Zar and Zabu 1st Appearance of Maa-Gor & Swamp Men
Nov 1st, 1965
1st Appearance of the Sentinels 1st Appearance of Warren Worthington Jr 1st Appearance of Katheryn Worthington 1st Appearance of Dr. Bolivar Trask X-Men comic begins publishing monthly for the first time.
Apr 1st, 1966
1st Appearance/Origin of Mimic (Calvin Rankin) 1st Appearance of Vera Cantor Last Jack Kirby/Stan Lee Issue
Mar 3rd, 1966
1st Appearance of Supreme One 1st Roy Thomas Issue 2nd Appearance of Unus 3rd Appearance of the Blob
Jun 30th, 1966
1st Appearance/Origin of The Locust (Dr. August Hopper) 1st Appearance of Ted Roberts 1st Appearance of Ryan Chemicals
Nov 3rd, 1966
1st Appearance of Banshee (Sean Cassidy) 1st Appearance of The Ogre (Brian Dunlap) 1st Appearance of the Factor Three
Feb 14th, 1967
1st Appearance of Cobalt Man (Ralphie Roberts) 1st Appearance of Candace Southern
Jun 8th, 1967
1st Appearance of the Changeling (As Master) Spider-Man Appearance 1st Appearance of Mekano
Oct 10th, 1967
Debut of New X-Men Uniforms Death of the Mutant Master 1st Appearance of the Living Diamond
Nov 9th, 1967
1st Appearance of Victor Frankenstein in Marvel Comics 1st Appearance of Frankenstein's Monster (Robot) 1st (Full) Appearance of the Living Diamond
Aug 3rd, 1968
1st Appearance of Polaris (Lorna Dane) 1st Appearance of Mesmero 1st Appearance of Demi-Men 1st Jim Steranko X-Men Cover
Sep 10th, 1968
2nd Appearance of Polaris (Lorna Dane) 1st Appearance of the Magneto Android New X-Men Logo created by Jim Steranko
Mar 11th, 1969
1st Neal Adams Cover and Art in the X-Men title 1st Appearance of the Living Monolith (Ahmet Abdol)
Sep 16th, 1969
1st Appearance of the Creator 1st Appearance of the Savage Land Mutates Angel gets a new Costume
Dec 16th, 1969
Last Neal Adams Issue Return of Professor X 1st Appearance of the Z'nox Havok Joins Fantastic Four Cameo
Jan 13th, 1970
First and Only Appearance of Hulk in X-Men Title Last new story with original X-Men team Last Issue before Reprints Begin, Series Cancelled
Jun 10th, 1975
Original X-Men Stories Begin again 2nd Appearance of Nightcrawler, Storm, Thunderbird, Colossus 4th Appearance of Wolverine
Sep 23rd, 1975
1st Appearance of Moira MacTaggert 1st Appearance of Steven Lang 1st Appearance of Kierrok 1st Appearance of the N'Garai
Nov 25th, 1975
1st Appearance of Eric the Red (Daven Shakari), 1st Appearance of the Shi'ar (Race) 1st Cameo Appearance of Emperor D'Ken Neramani Lorna Dane is revealed as (Polaris)
Jan 20th, 1976
1st Appearance of Amanda Sefton 1st Appearance of Betsy Wilford Clark Kent and Lois Lane Cameo
May 18th, 1976
Old X-Men vs. New X-Men 1st time Colossus & Wolverine utilize Fastball Special maneuver
Jul 20th, 1976
1st Appearance of Jean Grey as the Phoenix 1st Appearance of Black Tom Cassidy (Full) The real Jean's last appearance until Avengers #263 1st Appearance of Eamon O'Donnell
Sep 1st, 2023
2023 Facsimile - Comics Illuminati Exclusive Nathan Szerdy Green Virgin Variant
Nov 16th, 1976
Wolverine is called Logan for the first time 2nd Cameo of Emperor D'Ken Neramani (on screen).
Jan 18th, 1977
1st Appearance of The Starjammers 1st Appearance of Corsair (Christopher Summers) 1st Appearance of Muir Island 1st Appearance of Blackbird 1st Full Appearance of Princess Lilandra Neramani
Jul 19th, 1977
1st Appearance of the Imperial Guard 1st Appearance of the Star Jammers (Full) 1st Appearance of Gladiator 1st Appearance of Emperor D'Ken Neramani 1st Appearance of The M'kraan Crystal (Nexus of all Realities) 1st Appearance of Soul Drinker
Oct 1st, 1977
1ST APPEARANCE OF THE IMPERIAL GUARD, EMPEROR D'KEN NERAMANI AND THE M'KRAAN CRYSTAL (NEXUS OF ALL REALITIES)
Nov 15th, 1977
1st Appearance of Weapon Alpha (James Hudson) Aka: Vindicator 1st Appearance of Department H
May 16th, 1978
Wolverine's Healing Factor and Unbreakable Bones are mentioned for the first time The X-Men title returns to Monthly Publishing 1st Appearance of Nanny
Oct 17th, 1978
1st Appearance of The Shadow King (Amahl Farouk) Amahl Farouk Professor X Origin Retold
Jan 16th, 1979
1st Cameo Appearance of Alpha Flight 1st Cameo Appearance of Northstar 1st Cameo Appearance of Sasquatch 1st Cameo Appearance of Aurora
Feb 13th, 1979
1st Full Appearance of Alpha Flight 1st Full Appearance of Northstar (Jean-Paul Beaubier) 1st Full Appearance of Shaman (Michael Twoyoungmen) 1st Full Appearance of Snowbird (Anne McKenzie) 1st Full Appearance of Sasquatch (Walter Langkowski) 1st Full Appearance of Aurora (Jeanne-Marie Beaubier)
Jun 1st, 1979
Origin of Colossus full name revealed, First Jason Wyngarde Appearance As Mastermind
Mar 20th, 1979
Origin of Colossus full name revealed First Jason Wyngarde Appearance As Mastermind
Sep 1st, 1979
1st Full Appearance of Mutant X (powerful mutant with reality warping abilities).
Sep 1st, 1979
1st Full Appearance of Mutant X (powerful mutant with reality warping abilities).
Feb 1st, 1980
1st Appearance of Dazzler (Alison Blaire) - 2nd Appearance of Emma Frost - 2nd Appearance of Kitty Pryde
Feb 1st, 1980
1st Appearance of Dazzler (Alison Blaire) - 2nd Appearance of Emma Frost - 2nd Appearance of Kitty Pryde
Mar 1st, 1980
1st Appearance of Hell Fire Knights (operatives) - 2nd Appearance of Dazzler - 1st White Queen Cover
Mar 1st, 1980
1st Appearance of Hell Fire Knights (operatives) - 2nd Appearance of Dazzler - 1st White Queen Cover
Nov 1st, 1980
Kitty Pryde Joins the X-men - 1st Appearance Heather McNeil Hudson - Wolverine debuts New Uniform
Nov 1st, 1980
Kitty Pryde Joins the X-men - 1st Appearance Heather McNeil Hudson - Wolverine debuts New Uniform
Jan 1st, 1981
1st Appearance's of Future X-Men, Rachel Summers, Avalanche, Destiny & Pyro Appearance
Jan 1st, 1981
1st Appearance's of Future X-Men, Rachel Summers, Avalanche, Destiny & Pyro Appearance
Apr 1st, 1983
1st Appearance of Madelyn Pryor; Lockheed. Wolverine and Cyclops leave team. Kitty Pride rejoins team.
Apr 1st, 1983
1st Appearance of Madelyn Pryor; Lockheed. Wolverine and Cyclops leave team. Kitty Pride rejoins team.
Oct 1st, 1986
Mutant Massacre Storyline. 1st Appearance of the Marauders (in Shadows); Arclight (Philippa Sontag), Vertigo, Harpoon (Kodiak Noatak), Malice, Scalphunter (John Greycrow), Scrambler (Kim Il Sung),
May 1st, 1988
1st team appearance of The Reavers: Pretty Boy, Bonebreaker, Skullbuster. 1st appearance of Tyger Tiger. 1st appearance of Gateway
Jun 1st, 1989
Cameo appearance of Chewbacca, Yoda, Jabba the Hut, Boba Fett, an Alien Xenomorph, E.T. and Alf
Jun 1st, 1989
Cameo appearance of Chewbacca, Yoda, Jabba the Hut, Boba Fett, an Alien Xenomorph, E.T. and Alf
Aug 1st, 1990
1st Full Appearance of Gambit (Remy LeBeau) 1st Cameo in Uncanny X-Men Annual #14
Aug 1st, 1990
1st Full Appearance of Gambit (Remy LeBeau) 1st Cameo in Uncanny X-Men Annual #14
Sep 1st, 2008
Michael Turner Retailer Incentive Variant Cover. Limited to 1 in 30. Estimated Sales 5,066
Sep 1st, 2008
Terry Dodson Retailer Incentive Variant Cover. Limited to 1 in 30. Estimated Sales 5,066
Sep 1st, 2008
Michael Turner Retailer Incentive Sketch Variant Cover. 1:200 Estimated Sales 760
Sep 1st, 2008
Terry Dodson Retailer Incentive Sketch Variant Cover 1:200 Estimated Sales 760