Adventure Comics (1938)
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Key Facts
2nd appearance of Aqualad
1st appearance of the Aquacave
Key Facts
2nd appearance of Aqualad
1st appearance of the Aquacave
Key Facts
Origin of Lex Luthor retold
Key Facts
1st appearance of Human Flying Fish
Key Facts
Origin of the first Superman/Batman team-up
Key Facts
Debut of White Kryptonite
Destroys vegetation
Key Facts
1st appearance and origin of Star Boy, Thom Kallor, a member of the Legion of Super-Heroes
Key Facts
1st appearance and origin of Star Boy, Thom Kallor, a member of the Legion of Super-Heroes
Key Facts
1st appearance of General Zod
First mention of the Phantom Zone
Key Facts
1st appearance of General Zod
First mention of the Phantom Zone
Key Facts
Stories titled "Tales of the Bizarro World" begin
Key Facts
Stories titled "Tales of the Bizarro World" begin
Key Facts
1st appearance of Bizarro Kltpzyxm
Key Facts
1st appearance of Dev-Em, a Kryptonian punk
1st appearance of Bizarro Jimmy Olsen and Bizarro Perry White
Key Facts
1st appearance of Dev-Em, a Kryptonian punk
1st appearance of Bizarro Jimmy Olsen and Bizarro Perry White
Key Facts
2nd appearance of Dev-Em
Key Facts
1st appearance of Jax-Ur an evil scientist
Key Facts
Origin of Sunboy
Key Facts
1st appearance of Bizarro Lana Lang and Bizarro Lucy Lane
Key Facts
1st appearance of Bizarro Lana Lang and Bizarro Lucy Lane
Key Facts
1st team appearance of The Legion of Super-Pets: Beppo the Super-Monkey, Comet the Super-Horse (1st), Krypto the Super-Dog and Streaky the Super-Cat
2nd appearance of General Zod
1st appearance of Bizarro Lex Luthor
Key Facts
1st team appearance of The Legion of Super-Pets: Beppo the Super-Monkey, Comet the Super-Horse (1st), Krypto the Super-Dog and Streaky the Super-Cat
2nd appearance of General Zod
1st appearance of Bizarro Lex Luthor
Key Facts
Bizarro versions of Marilyn Monroe and President John F. Kennedy
Key Facts
Bizarro versions of Marilyn Monroe and President John F. Kennedy
Key Facts
1st appearance of Bizarro Titano
1st cameo appearance of Bizarro
Key Facts
1st appearance of Bizarro Titano
1st cameo appearance of Bizarro
Key Facts
Debut of Gold Kryptonite
Permanently strips Kryptonians of their powers
Key Facts
Debut of Gold Kryptonite
Permanently strips Kryptonians of their powers
Key Facts
Ongoing stories featuring the Legion of Super-Heroes begin
1st team appearance of the Science Police, a law enforcement agency in the 30th Century
Key Facts
Ongoing stories featuring the Legion of Super-Heroes begin
1st team appearance of the Science Police, a law enforcement agency in the 30th Century
Key Facts
Origin of Bouncing Boy
Key Facts
1st appearance and origin of Matter-Eater Lad
Key Facts
Death of Lightning Lad, killed by a freeze ray but resurrected in issue #312
Key Facts
Death of Lightning Lad, killed by a freeze ray but resurrected in issue #312
Key Facts
1st team appearance of Legion of Substitute Heroes: Fire Lad, Polar Lad, Stone Boy, Night Girl, Chlorophyll Kid
Key Facts
1st team appearance of Legion of Substitute Heroes: Fire Lad, Polar Lad, Stone Boy, Night Girl, Chlorophyll Kid
Key Facts
1st appearance of Element Lad
Key Facts
1st appearance of Lightning Lass, later becomes Light Lass
Key Facts
1st appearance of Lightning Lass, later becomes Light Lass
Key Facts
1st team appearance of Legion of Super-Monsters: Earthquake Beast, Eye Monster, Mirror Monster, Drill Beast, Omni-Beast
Key Facts
1st team appearance of Legion of Super-Monsters: Earthquake Beast, Eye Monster, Mirror Monster, Drill Beast, Omni-Beast
Key Facts
Resurrection of Lightning Lad, who was killed in issue #304
Key Facts
Resurrection of Lightning Lad, who was killed in issue #304
Key Facts
Statue of Val-El (cameo)
Key Facts
1st appearance of Dream Girl, a member of the Legion of Super-Heroes
1st cameo appearance of Time Trapper
Key Facts
1st appearance of Dream Girl, a member of the Legion of Super-Heroes
1st cameo appearance of Time Trapper
Key Facts
1st full appearance of Time Trapper, an enemy of vast power who can manipulate time in various ways
Key Facts
1st full appearance of Time Trapper, an enemy of vast power who can manipulate time in various ways
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