First appearances of significant characters introduced in DC's Absolute Superman, Absolute Batman, Absolute Wonder Woman, Absolute Flash, Absolute Green Lantern and Absolute Martian Manhunter 

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Key Facts

Introduction of Sinestro in full, previous cameo in Absolute Green Lantern #4 - eye only

Introduction and death of Kilowog

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Introduction of Goldface

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Introduction of Hector Hammond

Introduction of Sinestro, briefly, eye only

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Introduction of Joker in full (human form) - appearing in multiple panels but teaser art of a future arc shows a more monstrous version of the character (cameos in multiple issues)

Introduction of Absolute Green Arrow

Introduction of Absolute Hawkman

Introduction of Lex Luthor in the Absolute Universe

Introduction of the Absolute Justice League: Ra’s al Ghul, Veronica Cale, Elenore Thawne, Hector Hammond, Joker, Lex Luthor

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Waylon Jones introduced as Killer Croc

Introduction of Clayface as the K.L.A.Y. biome

1st appearance of Dr. Arkham

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Introduction of Catwoman in costume, head only in final panel

Introduction of Harley Quinn, unnamed and obscured by a hood

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Introduction of Catwoman in costume, in full

Introduction of Harley Quinn in full

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1st appearance of Elenore Thawne

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Introduction of Clea

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Introduction of Ra's al Ghul

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Introduction of Persephone

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Origin of Superman post-Krypton in Smallville

Introduction of Ra’s al Ghul

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Introduction of Bane

Introduction of Deathstroke, briefly in a photograph

Introduction of Dick Grayson, briefly

DC ⋅ 2025

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Conclusion of Mr. Freeze arc

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Introduction of Doctor Poison

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Introduction of Guy Gardner

Introduction of Abin Sur, in full

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Introduction of Brainiac, full appearance

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Introduction of Absolute Martian Manhunter aka Martian Mindhunter

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Introduction of Absolute Green Lantern

Introduction of Black Hand

Introduction of John Stewart

Introduction of Abin Sur, briefly

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Introduction of Absolute Flash, Wally West - preview in Absolute Wonder Woman #5

Introduction of Gorilla Grodd, unnamed

Introduction of the Rogues: Captain Boomerang, Captain Cold, Golden Glider, Trickster

Introduction of Mirror Master, final panels

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Introduction of Jimmy Olsen, Omega Alpha of the Omega Men

Introduction of General Lane

1st appearance of Omega Prime aka Primus, later revealed to be Talia al Ghul

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Introduction of Martha Kent

Introduction of Jonathan Kent, cameo appearance in a photograph

Introduction of Smallville

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Introduction of Peacemaker, Christopher Smith

Origin of Sol, Superman's cape

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Premiere issue of an ongoing series in the Absolute Universe, a dimension built on Darkseid energy

Introduction of Agent Lois Lane

Introduction of Jor-El, Lara-El, Krypto

1st appearance of Sol, Kal-El's A.I. cape

Introduction of Lazarus Corp and the Peacemakers

Introduction of Brainiac, cameo appearance

Introduction of the Bottled Cities, possible cameo appearance of Kandor

Absolute Superman #1 preceded by an Absolute Superman/Absolute Wonder Woman black and white ashcan preview

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Introduction of Hades

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Introduction of Hecate

Introduction of Etta Candy

1st appearance of Gia Candy

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1st full appearance of the Tetracide

Introduction of Barbara Minverva, Cheetah in the mainstream universe

Diana assumes the Wonder Woman moniker

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Introduction of Steve Trevor

1st cameo appearance of the Tetracide

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Premiere issue of an ongoing series in the Absolute Universe, a dimension built on Darkseid energy

Introduction of Circe

Introduction of Pegasus

Origin of Wonder Woman

Absolute Wonder Woman #1 preceded by an Absolute Superman/Absolute Wonder Woman black and white ashcan preview

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1st appearance of Victor Fries Jr., the son of Victor and Nora Fries who turns into a monstrous humanoid in the final panel

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Full appearance of Selina Kyle as a child

Introduction of Julia Pennyworth in full

1st appearance of AL, an artificial intelligence robot created by Edward Nygma

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Premiere issue of an ongoing series in the Absolute Universe, a dimension built on Darkseid energy

Introduction of Alfred Pennyworth, an M16 agent

Introduction of Black Mask

Introduction of Waylon Jones, Killer Crock in the mainstream universe

Introduction of Martha Wayne, Commissioner Gordon, Barbara Gordon, Harvey Bullock

Introduction of Selina Kyle, Oswald Cobblepot, Edward Nygma, Harvey Dent - as children in a photograph

Introduction of Matches Malone

Introduction of Joker, first cameo appearance

Introduction of Julia Pennyworth, cameo appearance

Introduction and death of Thomas Wayne

1st team appearance of the Party Animals, led by Black Mask

Absolute Batman #1 preceded by a 16-page black and white ashcan preview

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Introduction of Absolute Superman

Introduction of Absolute Batman

Introduction of Absolute Wonder Woman

Introduction of the Absolute Universe

Debut of the Justice League satellite

Death of Kalibak

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