1st appearance of Earth Sentry, John Foster

Son of Bill Foster aka Giant-Man aka Black Goliath

1st appearance of Gerald Drew as a baby

1st official team appearance of the X-Babies, childlike clones created by Mojo

Previous appearance of the X-Babies were the actual X-Men de-aged by Mojo

Origin of the High Evolutionary

1st cameo appearance of Matthew Plunder as a baby, the son of Ka-Zar and Shanna the She-Devil

1st appearance of Offspring, Luke Ernest O'Brian, the son of Plastic Man

1st appearance of Damian Wayne, son of Bruce Wayne and Talia Al Ghul, as a baby

Initially an Elseworlds type of story but retconned into continuity by Grant Morrison

Softcover Graphic Novel

1st appearance of Equinox, the son of Power Girl

1st appearance of Marcus Johnson, later revealed to be Nick Fury Jr., the son of Nick Fury

1st appearance of Agent Phil Coulson in Marvel Comics continuity, referred to only by the name ‘Cheese’

1st and only appearance of Sean Cassidy II (baby)

Siryn becomes pregnant with the child of one of Multiple Man's rogue duplicates and when the original Jamie Madrox holds the child, his body instinctively reabsorbs it to the horror of Siryn and Jamie

1st appearance of Virginia Vision, wife of Vision

1st appearance of Vin Vision, son of Vision

1st appearance of Viv Vision, daughter of Vision

Death of Grim Reaper, beaten to death with a pan by Virginia Vision

1st appearance of Sarko, the son of Kyle Rayner and former Yellow Lantern Soranik Natu, daughter of Sinestro

1st appearance of Dr. Positron aka Max Brashear, son of Blue Marvel

1st cameo appearance of Kevin Brashear, the Blue Marvel's eldest son

Controversial issue: Carol Danvers is "used" and becomes pregnant by a man who turns out to be the same person to whom she gives birth

1st appearance of Marcus Immortus, the son of Immortus, conceived by Carol Danvers

1st appearance of The Savage Dragon's son, Malcolm Dragon as a baby

1st appearance of Mazikeen, demon servant loyal to Lucifer

[March 2021 - unconfirmed reports that actress Cassandra Clare is cast as the demon, Mazikeen in the upcoming Netflix Sandman series]

1st appearance of Daniel Hall, later becomes the second Dream

1st appearance of Jacob Free, the son of Mister Miracle and Big Barda - grandson of Darkseid

1st appearance of Erista, the son of Wolverine and Gahck, a tribeswoman of The Savage Land

Wolverine is unaware of Erista's existence

1st team appearance of the Secret Warriors: Nick Fury, Phobos, Slingshot, Quake, Stonewall, Hellfire and Druid

1st appearance of Stonewall, son of the Absorbing Man

1st appearance of Druid, son of Doctor Druid

1st appearance of Hellfire, descendant of the Phantom Rider

1st appearance of Yo-Yo Rodriguez aka Slingshot

Cover art inspired by Avengers #16

[May 2020 - Secret Warriors team is rumored to appear in the MCU]

Classic battle of the Hulk with green skin vs the Hulk with gray skin

1st appearance of Agamemnon, son of Loki and a mortal woman

1st appearance of Ahura, unnamed, as a baby, son of Black Bolt and Medusa

1st team appearance of Infinity Inc: Brainwave Jr., Fury, Jade, Northwind, Nuklon, Obsidian, Silver Scarab

1st appearance of Obsidian, the son of Alan Scott and Rose aka Thorn

1st appearance of Silver Scarab, Hector Hall, the son of the Golden Age Hawkman and Hawkgirl

1st appearance of Jade, briefly becomes Earth's Green Lantern

1st appearance of Nuklon, later becomes Atom-Smasher

1st appearance of Connor Hawke, son of Green Arrow and Sandra Hawke

1st appearance of Legacy aka Genis-Vell, the son of Captain Mar-Vell and Elysius

Polybagged with a trading card

1st appearance of Hyperstorm, son of Rachel Summers and Franklin Richards from the future

1st appearance of Cyclone, Maxine Hunkel, previously Red Tornado

[December 2020 - Quintessa Swindell will portray Cyclone/Maxine Hunkel in Black Adam]

1st appearance of Liberty Belle

1st cameo appearance of Tomcat the son of Wildcat, Ted Grant

1st cover appearance of Citizen Steel , Nathan Heywood, on the cover only

1st appearance of Jonathan Kent, the infant son of Superman and Lois Lane, later becomes Superboy

Preview appearance of Doomed

1st appearance of Llyron, son of Namor and Llyra

1st appearance of the second Scorpio, Mikel Fury, son of Nick Fury

1st appearance of X-Man, the son of Scott Summers and Jean Grey, conceived through scientific procedures performed by Mr. Sinister

📖 Reading Order: Age of Apocalypse

1st appearance of Koryak, son of Aquaman and an Inupiat villager

1st appearance of Tommy Shepherd as a young man, son of Scarlet Witch, becomes Speed in Young Avengers #12

1st team appearance of the Young Avengers: Kate Bishop, Patriot, Asgardian aka Wiccan, Hulkling, and Iron Lad, who is later revealed to be a young variant of Kang

1st cameo appearance of Legion, son of Professor Xavier and Gabrielle Haller, appears in a one-page dossier created by Moira MacTaggert

1st team appearance of the Justice League's children from the future

1st appearance of Hunter Prince, son of Wonder Woman and The Darkness

1st appearance of Cruise and Green Lanterns, Jenny and Jason Allen, children of Barry Allen and Jessica Cruz

1st appearance of Cube, son of Cyborg and unnamed mother

1st appearance of Serenity, daughter of Aquaman and Mera

1st appearance of Sovereign, an alternate reality Hippolyta

1st appearance of Annihilus, ruler of the Negative Zone

1st appearance of Franklin Richards, as an unnamed infant, considered by Marvel to be the most powerful mutant in the Marvel Universe

Introduction of the Cosmic Control Rod, a weapon used by Annihilus that manipulates matter

Skaar appears throughout this issue as an adult

1st appearance of Hiro-Kala, son of Hulk and Caiera

1st appearance of Omaka, Red Queen of Sakaar

1st appearance of Skaar, son of the Hulk and Caiera

Standalone story set in an alternate reality spun-off from the Planet Hulk event

[July 2021 - Skaar rumored to appear in the She-Hulk series which may tease a World War Hulk titled project that is rumored but not confirmed / August 2022 - the latest She-Hulk TV spot teases a new plot thread that shows a spacecraft similar to the one Hulk used to escape from Sakaar attacking Hulk and She-Hulk]

1st appearance of Nathan Summers (Cable) as a baby, son of Scott Summers and Madelyne Pryor

1st appearance of Daken, the son of Wolverine and Itsu

Daken is featured in half of this issue but is mostly disguised although his claws are shown and he is revealed to be the son of Logan

[April 2021 - Marvel launched a travel website at exploremadripoor.com. There are certain numbers that were found in scenes of The Falcon and Winter Soldier that could be entered into different interactive parts of the site. Two names that were viewable on the site were Daken and Mystique]