1st appearances - just the comic equivalent of rookie cards? Oh and post a cover of a 1st appearance book in your collection 7 7

[Azkaban]

first Gibbon  I remember when I first read this as a kid I felt so sorry for him 

[Azkaban]

first Mister Miracle

[Semicentennial]

1st He-man and the Masters of the Universe

Edited May 12 by Semicentennial

[Semicentennial]

1st Marvel Comics' He-man and the Masters of the Universe

[MR SigS]

1st Vulture, Doctor Octopus, Sandman, and Lizard.

 

[grendelbo]

[Semicentennial]

1st appearance of Milk and Cheese

[MR SigS]

1st Gambit.

EDIT: Okay, Gambits.

Edited May 12 by MR SigS
GambitS

[Semicentennial]

1st appearance of Hell-rider (created by co-creator of Ghost Rider, predates Ghost Rider by a year), and 1st appearance of Butterfly (1st black female superheroine - predates Storm by 4 years) 

Edited May 12 by Semicentennial

[Semicentennial]

1st New 52 Earth 2 Batman (Thomas Wayne)

Edited May 12 by Semicentennial

[MR SigS]

1st Dane Whitman.

 

[Semicentennial]

1st Carol Danvers

[Semicentennial]

1st appearance of Guy Gardner in alternate reality type story.

 

1st Guy Gardner as Green Lantern

 

[Azkaban]

first Phoenix 

 

[Azkaban]

first Sauron

 

[Hepcat]

On 5/11/2024 at 10:14 PM, Semicentennial said:

This was hot one season and then dead thereafter.  1st New 52 Batwoman.

Huh? Did you buy and slab all those copies? If so, why?

[Hepcat]

On 5/11/2024 at 10:29 PM, Semicentennial said:

1st appearance of Steve Ditko artwork.  

Mmmmm! 

[Morganmi]

1st Lassie 

[Hepcat]

First Queen Mera:

Sadly issue #11 would also mark the last appearance of Aquaman's friend Quisp:

He'd be shunted aside by Mera who'd reappear in issues #13-17 before marrying the Sea King in issue #18:

Edited May 12 by Hepcat

[MR SigS]

1st Growing Man, and 1st Squadron Sinister.