Batman #4

DC ⋅ 1940

Batman #4

DC ⋅ 1940

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Key Facts

Batman's code of ethics to not kill is established

First mention of Gotham City

1st appearance of Jack of Diamonds aka Dr. Deegan

1st appearance of Jimmy McCoy, a gangster

[August 2025 - Jimmy McCoy is seen on a newspaper prop used in the Clayface movie]

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Key Facts

Batman's code of ethics to not kill is established

First mention of Gotham City

1st appearance of Jack of Diamonds aka Dr. Deegan

1st appearance of Jimmy McCoy, a gangster

[August 2025 - Jimmy McCoy is seen on a newspaper prop used in the Clayface movie]

Issue Details

Publisher	DC
Series	Batman
Published	December 1940

Creators

Artist	Bob Kane
Writer	Bill Finger

Synopsis

Owned Issues

You don't own any copies of this issue.

Batman #4

DC ⋅ 1940

Batman #4

DC ⋅ 1940

Key Facts

Batman's code of ethics to not kill is established

First mention of Gotham City

1st appearance of Jack of Diamonds aka Dr. Deegan

1st appearance of Jimmy McCoy, a gangster

[August 2025 - Jimmy McCoy is seen on a newspaper prop used in the Clayface movie]

Key Facts

Batman's code of ethics to not kill is established

First mention of Gotham City

1st appearance of Jack of Diamonds aka Dr. Deegan

1st appearance of Jimmy McCoy, a gangster

[August 2025 - Jimmy McCoy is seen on a newspaper prop used in the Clayface movie]

Issue Details

DC

Batman

December 1940

Creators

Bob Kane

Bill Finger

Synopsis

Owned Issues