Comic Title: Justice League of America #29
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1964
On Sale Date: June 11, 1964 Copyright Date June 11, 1964
Source: Library of Congress, Periodicals 1964

Frequency: Monthly, with the exception of Jan., April, July and Oct.
Cover Price: $0.12
Page Count: 32
Editor: Julius Schwartz

Title: "Crisis on Earth-Three"
Pages: 24

Feature(s):
Justice League of America (of Earth-1)

Writer: Gardner F. Fox
Penciller: Mike Sekowsky
Inker: Bernard Sachs

Reprinted In:
Justice League of America #114 (1974)
Justice League of America Archives Vol. 4 HC (1998)
Crisis on Multiple Earths Vol. 1 TPB (2002)
Showcase Presents:Justice League of America Vol. 2 TPB (2007)
Justice League of America Omnibus Vol. 1 HC (2014)
Justice League of America:The Silver Age Vol. 3 TPB (2017)
Crisis on Infinite Earths Box Set HC (2020)
Justice League of America:A Celebration of 60 Years HC (2020)
Crisis on Multiple Earths:Crossing Over TPB (2021)

Feature Character(s)

• Justice League of America (last appearance in Teen Titans #53; next appearance in Justice League of America #30)
• Superman of Earth-1 (last appearance in Superman's Pal, Jimmy Olsen #78; next appearance in Justice League of America #30)
• Batman of Earth-1 (last appearance in Teen Titans #53; next appearance in Justice League of America #30)
• Flash of Earth-1 (last appearance in Teen Titans #53; next appearance in Justice League of America #30)
• Wonder Woman of Earth-1 (last appearance in Teen Titans #53; next appearance in Justice League of America #30)
• Green Lantern of Earth-1 (last appearance in Green Lantern #30; next appearance in Justice League of America #30)
• Aquaman (last appearance in Teen Titans #53; next appearance in Aquaman #17)
• Martian Manhunter (last appearance in House of Mystery #144; next appearance in House of Mystery #145)

Guest Star(s)

• Justice Society of America (last appearance in Justice League of America #22; next appearance in Justice League of America #30)
• Doctor Fate (last appearance in Justice League of America #22; next appearance in Justice League of America #30)
• Black Canary of Earth-2 (last appearance in Justice League of America #22; next appearance in Justice League of America #30)
• Hawkman of Earth-2 (last appearance in Justice League of America #22; next appearance in Justice League of America #30)
• Starman of Earth-2 (Ted Knight; first modern appearance; last appearance in Adventure Comics #102; next appearance in Justice League of America #30)
• Doctor Mid-Nite (last appearance in Flash #137; next appearance in Justice League of America #30)

Supporting Character(s)

• Snapper Carr (last appearance in Justice League of America #28; next appearance in Justice League of America #31)

Villain(s)

• Crime Syndicate (a team of super-villains of Earth-3; first appearance; next appearance in Justice League of America #30)
• Ultraman (first appearance; next appearance in Justice League of America #30)
• Superwoman (first appearance; next appearance in Justice League of America #30)
• Owlman (first appearance; next appearance in Justice League of America #30)
• Power Ring (first appearance; next appearance in Justice League of America #30)
• Johnny Quick of Earth-3 (first appearance; next appearance in Justice League of America #30)

Guest Appearance(s)

• Flash of Earth-2 (last appearance in Justice League of America #22; next appearance in Flash #151)

Other Character(s)

• Various historical characters of Earth-3 (no further appearances)

Cameo Appearance(s)

• Atom (of Earth-1)
• Atom (of Earth-2)
• Green Lantern (of Earth-2)

Comments:
Aquaman and Martian Manhunter appear only briefly in this story.

This story continues in Justice League of America #30.

Synopsis:
Where the Justice League fights evil on Earth-1, and the Justice Society upholds the law on Earth-2, the Crime Syndicate of America is a super-team of criminals on Earth-3. In this parallel world, history is strangely twisted, and every super-being is a super-villain. Johnny Quick, Power Ring, Superwoman, Owlman, and Ultraman are the counterparts of Flash, Green Lantern, Wonder Woman, Batman, and Superman, respectively.

When the villains accidentally discover the existence of Earth-1, they resolve to invade it and battle the Justice League heroes. In battles between Flash and Ultraman, Batman and Johnny Quick, Superman and Power Ring, Wonder Woman and Superwoman, and Green Lantern and Owlman, the heroes prove victorious until the villains play their trump card: a secret word that automatically vibrates them and their counterparts into Earth-3.

Seeking a neutral battleground for a return match, the Syndicate then discovers Earth-2. The League members are imprisoned in their headquarters, while the Crime Syndicate journeys to Earth-2 to overcome the Justice Society. However, the JLA forewarns the JSA of the super-villains' secret strategy.