Detective Comics (1937)
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Key Facts
2nd appearance of the Penguin
1st appearance of Wing How in costume, formerly the Crimson Avenger's chauffeur
Key Facts
2nd appearance of the Penguin
1st appearance of Wing How in costume, formerly the Crimson Avenger's chauffeur
Key Facts
1st appearance and origin of Air Wave, Larry Jordan
Debut of the Bat-Signal
Key Facts
1st appearance and origin of Air Wave, Larry Jordan
Debut of the Bat-Signal
Key Facts
1st cover appearance of the Batplane
Key Facts
Cover art by Jerry Robinson featuring the Joker
Key Facts
1st appearance of Mr. Baffle, a thief
Key Facts
1st appearance and origin of Boy Commandos
This issue marked the beginning transformation of the Joker from a homicidal maniac into a goofy character that persisted until Batman #251 when Denny O'Neil and Neal Adams revived the Joker after a four year absence, reintroducing his homicidal side
Key Facts
1st appearance and origin of Boy Commandos
This issue marked the beginning transformation of the Joker from a homicidal maniac into a goofy character that persisted until Batman #251 when Denny O'Neil and Neal Adams revived the Joker after a four year absence, reintroducing his homicidal side
Key Facts
2nd appearance and first cover of Boy Commandos
Key Facts
2nd appearance and first cover of Boy Commandos
Key Facts
1st appearance and origin of Two-Face, Harvey Dent, a district attorney disfigured by acid
[January 2026 - there is speculation on social media that Sebastian Stan will be cast as Two-Face for the Matt Reeves Batman sequel]
1st appearance of Gilda Dent, the wife of Harvey Dent
1st appearance of Salvatore Maroni, the mob boss who disfigured Harvey Dent
Key Facts
1st appearance and origin of Two-Face, Harvey Dent, a district attorney disfigured by acid
[January 2026 - there is speculation on social media that Sebastian Stan will be cast as Two-Face for the Matt Reeves Batman sequel]
1st appearance of Gilda Dent, the wife of Harvey Dent
1st appearance of Salvatore Maroni, the mob boss who disfigured Harvey Dent
Key Facts
1st cover appearance of the Penguin
Key Facts
1st cover and 2nd appearance of Two-Face
Key Facts
Cover art by Jerry Robinson featuring the Joker
Key Facts
Cover art by Jerry Robinson featuring the Joker
Key Facts
Cover art by Jerry Robinson featuring the Joker
Key Facts
Cover art by Jerry Robinson featuring the Joker
Key Facts
1st cover and 2nd appearance of the Scarecrow
Key Facts
1st cover and 2nd appearance of the Scarecrow
Key Facts
1st appearance of Tweedledee & Tweedledum
Key Facts
Cover art by Jerry Robinson featuring the Joker
Key Facts
Cover art by Jerry Robinson featuring the Joker
Key Facts
1st appearance of Cavalier
Key Facts
1st appearance of Alfred with a thin build as commonly depicted
Alfred departs for vacation after lamenting his excess weight and upon his return at the end of the story, he is more recognizable as the character that has endured through the decades
Batman's underground hangar is first referened to as the Bat Cave
Key Facts
1st appearance of Alfred with a thin build as commonly depicted
Alfred departs for vacation after lamenting his excess weight and upon his return at the end of the story, he is more recognizable as the character that has endured through the decades
Batman's underground hangar is first referened to as the Bat Cave
Key Facts
Cover art by Dick Sprang featuring the Joker
Key Facts
Cover art by Dick Sprang featuring the Joker
Key Facts
Cover art by Dick Sprang featuring the Joker
Key Facts
Milestone issue #100
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