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Mark Gruenwald

Marvel Apr 1979

Thor #282

Thor #282
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1st cameo team appearance of the Time-Keepers, beings with the ability to manipulate time
Introduction of Castle Limbo, the home of Immortus
Marvel Aug 1979

Marvel Two-In-One #54

Marvel Two-In-One #54
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1st appearance of Titania, Davida DeVito, later becomes Lascivious
1st appearance of Screaming Mimi
1st appearance of Poundcakes
1st appearance of Letha
1st team appearance of The Grapplers, a female wrestling team
Death of Deathlok
Marvel Aug 1979

Avengers, The #186

Avengers, The #186
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Chthon appears as a cloud entity and possesses the Scarlet Witch
1st appearance of Magda, the wife of Magneto and mother to Quicksilver and Scarlet Witch
Origin of Scarlet Witch and Pietro, told by Bova
Hinted that Magneto is the father of Quicksilver and Scarlet Witch
Marvel Nov 1979

Spider-Woman #20

Spider-Woman #20
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First meeting of Spider-Man and Spider-Woman in the mainstream Marvel Universe although they did appear together earlier in the Children's Television Universe alternate reality of Spidey Super Stories #32
Marvel Oct 1980

What If…? #23

What If…? #23
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Origin of the Eternals, Deviants and Mutants begins when the First Host of Celestials visit Earth
Despite this story appearing in a What If…? comic, it is official Marvel canon
1st appearance of Spider-Ma'am
Marvel Oct 1980

Thor #300

Thor #300
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Origin of Odin
Origin of Thor, revealed that Gaea is the mother of Thor
1st appearance of Yu Huang, the Jade Emperor
1st team appearance of the Council of God-Heads: Ammon Ra, Anu, Baiame, Buddha, Buluku, Itzamna, Izanagi, Manitou, Nuada, Okonorote, Ukko, Ulgen, Tezcatlipoca, Tomazooma, Vishnu, Viracocha, Zeus
1st cameo appearance of Kiana aka Moonstalker
Marvel Apr 1981

Thor #306

Thor #306
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Origin of Air-Walker, a Xandarian named Gabriel Lan whose consciousness was transferred into an android replicant
Origin of Firelord
Marvel Jun 1982

Marvel Super Hero: Contest of Champions #1

Marvel Super Hero: Contest of Champions #1
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First limited series published by Marvel Comics
1st appearance of Blitzkrieg, able to summon lightning
1st full appearance of the Collective Man, six brothers who can merge into one
1st appearance of Shamrock, a hand-to-hand combatant
1st appearance of Defensor, possessor of a Vibranium suit of armor
1st appearance of Peregrine, utilizes a flight suit in battle
1st appearance of Talisman, an Australian magic user
Marvel Aug 1982

Thor Annual #10

Thor Annual #10
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1st appearance of Demogorge the God-Eater
1st full appearance of Apollo, god of light
Origin of Gaea, Chthon, Set and other Elder Gods
Includes the first map of Asgard

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