1st appearance of Batman

1st appearance of Commissioner Gordon

💰 Detective Comics #27 has sold for over one million dollars 4x with a record high sale in 7.0 for $1.5 million (Nov 2020)

2nd appearance of Batman

Hypodermic needle cover

1st appearance and origin of Hugo Strange

Debut of Batman's finned gloves

Final solo adventure of Batman in the Golden Age

1st appearance and origin of Robin

1st appearance of the Joker

1st appearance of the Cat, Selina Kyle, later becomes Catwoman

Debut of the first Batplane which has multiple designs from one issue to the next including Batman #3 and Batman #4

💰 Batman #1 sold for over one million dollars 3x with a record-high in 9.4 for $2,220,000

📣 Auction Results: New High [Previous High]

0.5 sold for $42,000 [$15,535 in 2015] +170%

Scarce printing variant, identified by the absence of a period before the issue number '1'

1st appearance of the Joker and the Cat aka Catwoman

3rd appearance of Robin

1st appearance and origin of Clayface, Basil Karlo

1st cover appearance of the Joker in Detective Comics

2nd appearance of the Joker

2nd appearance of Catwoman, Selina Kyle and first time she is referred to as Cat Woman, used interchangeably with The Cat

📣 Auction Results: New High [Previous High]

5.5 sold for $15,000 [$11,400 in 2018] +32%

First solo story featuring Robin

Debut of the first Catwoman costume, a mask resembling an actual cat

1st appearance of Puppet Master

📣 Auction Results: New High [Previous High]

5.5 sold for $7,800 [$6,156 in 2021] +27%

1st appearance of the Joker in a Detective Comics story, previously appeared on the cover of Detective Comics #40

📣 Auction Results: New High [Previous High]

5.0 sold for $2,760 [$1,256 in 2011] +120%

First mention of Gotham City

1st appearance of Jack of Diamonds aka Dr. Deegan

Death of Dr. Hugo Strange, fell to his death after being punched in the face by Batman while standing near the edge of a cliff

First mention of Batman’s vehicle referred to as the Batmobile

First mention of Gotham City in the Detective Comics title

2nd appearance of Clayface, Basil Karlo

Debut of the Batmobile design with the bat-shaped head on the front

1st appearance of Linda Page

Milestone issue #50

Cover art by Bob Kane featuring Batman and Robin

Cover art similar to #33 with Robin added

Origin of Green Lantern, Alan Scott, retold

Classic cover art by Bob Kane

Early Golden Age issue of Green Lantern, Alan Scott

Classic cover art by Fred Ray

1st appearance of the Penguin

[March 2022 - Colin Farrell will reprise the Penguin in an HBO Max spin-off]

Iconic cover art by Jack Burnley

First Christmas story in the Batman title

World War II cover art by Martin Nodell featuring Nazis

Cover art by Jerry Robinson featuring the Joker

Green Lantern, Alan Scott, joins the army

3rd cover appearance of the Joker, first cover appearance in the Batman title

1st appearance and origin of Boy Commandos

This issue marked the beginning transformation of The Joker from a homicidal maniac into a goofy character. This persisted until Batman #251 when Denny O'Neil and Neal Adams revived the Joker after a four year absence, reintroducing his homicidal side

1st appearance of the Batcave, unnamed, referred to as an underground hangar

📣 Auction Results: New High [Previous High]

8.0 sold for $4,080 [$2,390 in 2017] +71%

1st appearance and origin of Two-Face

1st appearance of Gilda Dent, the wife of Harvey Dent

1st appearance of Salvatore Maroni, a mob boss

📣 Auction Results: New High [Previous High]

8.5 sold for $31,200 [$7,099 in 2013] +339%

1st cover appearance of the Penguin

1st cover and 2nd appearance of Two-Face

Cover art by Jerry Robinson featuring the Joker

Cover art by Jerry Robinson and Bob Kane featuring Two-Face

1st cover appearance of the Batmobile

1st appearance of Merlin

Cover art by Dick Sprang featuring the Joker

1st cover appearance of Alfred

First solo story featuring Alfred

📣 Auction Results: New High [Previous High]

8.0 sold for $2,520 [$1,920 in May] +31%

First time two major Batman villains team-up - Joker and Penguin

Re-titled Miss America Magazine, formerly Miss America Comics

1st appearance of Patsy Walker, later becomes Hellcat

1st appearance of Buzz Baxter, later becomes Mad-Dog

1st appearance of Hedy Wolfe, friend and rival of Patsy Walker

Classic cover art by Dick Sprang

Debut of the first official Catwoman costume that would become iconic to her character

Selina Kyle's hair is blonde in this issue

Batman and Robin fight the mechanical T-Rex that would later decorate the Batcave for decades

1st team appearance and origin of the All Winners Squad: Captain America, Bucky, Human Torch, Miss America, Sub-Mariner, Toro and the Whizzer

Origin of Captain America retold

Classic cover art by Dick Sprang featuring the Penguin