Comic Title: Green Lantern #59
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: March 1968
On Sale Date: January 11, 1968 Newsstand Date January 11, 1968
Source: Direct Currents, Wonder Woman #175, Page 31

Copyright Date January 11, 1968
Source: Library of Congress, Periodicals 1968

Newsstand Date January 11, 1968
Source: Newsdealer Magazine, V22 #11

Frequency: Monthly with the exception of Feb., May, Aug., and Nov.
Cover Price: $0.12
Page Count: 32
Circulation: 202040
Editor: Julius Schwartz

Title: "Earth's Other Green Lantern"
Pages: 23

Feature(s):
Green Lantern (Hal Jordan of Earth-1)

Writer: John Broome
Penciller: Gil Kane
Inker: Sid Greene

Reprinted In:
Green Lantern #184 (1985)
Showcase Presents Green Lantern Vol. 3 TPB (2008)
Green Lantern:In Brightest Day TPB (2008)
Green Lantern:A Celebration of 75 Years HC (2015)
Green Lantern:The Silver Age Omnibus Vol. 2 HC (2018)
Green Lantern:80 Years of the Emerald Knight the Deluxe Edition HC (2020)

Feature Character(s)

• Green Lantern (last appearance in Justice League of America #60; next appearance in Justice League of America #61)

Supporting Character(s)

• Guardians of the Universe (last appearance in Green Lantern #58; next appearance in Green Lantern #63)
• Guy Gardner (next appearance in Green Lantern #87)

Villain(s)

• A gang of saboteurs (imaginary appearance)

Other Character(s)

• Abin Sur (appears in flashback; last appearance in Showcase #22; next appearance in Showcase #22)
• Children of the planet Ghera (imaginary appearance)

Cameo Appearance(s)

• Sonar (mentioned as foes of Guy Gardner in an alternate timeline)
• Sinestro (mentioned as foes of Guy Gardner in an alternate timeline)
• Shark (mentioned as foes of Guy Gardner in an alternate timeline)
• Black Hand (mentioned as foes of Guy Gardner in an alternate timeline)
• Doctor Polaris (mentioned as foes of Guy Gardner in an alternate timeline)

Synopsis:
On a visit to Oa, Hal Jordan looks back in time to see Abin Sur's death. While watching he learns that before summoning Hal to bequeath him the power ring and battery, the dying alien located another man that met the requirements to become a Green Lantern. Hal was chosen because he was closer, but Guy Gardner was also honest and without fear.

Hal wonders what would have happened if he hadn't been chosen to become Green Lantern. The Guardians then show him a means to see how Guy would have done as GL. In this alternate timeline, Guy receives Abin Sur's ring and becomes Green Lantern.

Gardner uses the ring to fight crime on Earth just like Hal. Their histories are very similar including battles against Sonar, Sinestro, and other foes. However, during one trip home from outer space, Guy takes a route Hal never did. On this route, Guy lands on the planet Ghera where the adult population has died off. The children broke into two groups and are at war with one another. Guy stops the war and brings peace to the world.

When Guy returns to Earth he contracts the same yellow plague that killed the adults of Ghera. As he is dying Guy summons Hal to his side and gives him the power ring. In this hypothetical timeline Hal becomes Green Lantern, just like in the real one.

After watching the events in the alternate timeline, Hal returns to Earth. He then looks up Guy Gardner and starts a friendship with him, but he doesn't tell Guy that he is Green Lantern.