As one of the publisher's most popular heroes, Alan became a founding member of the Justice Society of America, one of the first such teams of "mystery men" or superheroes in comic books.

The new Green Lantern, named Hal Jordan, was empowered by alien masters to serve as an interstellar lawman and had many adventures set in outer space.

For most of the 1960s and 1970s, Alan Scott made guest appearances in books belonging to Silver Age characters, visiting their universe through magical or technological means.

DC Comics decided to write the character out of continuity in a one-shot book entitled Last Days of the Justice Society, in which he was "forever" trapped in an extra-dimensional realm.

To distinguish Alan Scott from Hal Jordan, his superhero codename was for a time changed to "Sentinel" and he lost his magic ring, manifesting his powers through his glowing hands instead.

Following a railroad bridge collapse, the flame instructs Scott in how to fashion a ring from its metal, to give him fantastic powers as the superhero Green Lantern.

[2] During the 1940s, Green Lantern seemed to alternate between serious adventure, particularly when Solomon Grundy, his nemesis, appeared and light comedy, usually involving his sidekick, Doiby Dickles.

All-Star Squadron Annual #3 states that the JSA fought the villain Ian Karkull, who inadvertently imbued them with life energy stolen from an innocent victim.

The events of that incident also led Scott, who had failed to save the victim from whom the energy was stolen, to take a leave of absence from the JSA, explaining why the character vanished from the roster for a time.

They have a pair of children who would grow up to become the superheroes Jade and Obsidian of the team Infinity, Inc.[14] In the 1980s, Scott married his reformed former nemesis, Molly Mayne, also known as The Harlequin, reconciling with his son and daughter.

[14] The Last Days of the Justice Society of America Special (1986) one-shot tells how Adolf Hitler caused a massive wave of destructive energy to erupt over the post-Crisis Earth in 1945.

Scott and the JSA, fresh from burying their Earth-Two comrades Robin and Huntress, enter into a limbo dimension to fight an eternally recurring Ragnarok.

The Guardians then substituted a weakness for wood that allowed the local peasants to successfully attack and mortally wound Yalan with simple wooden clubs.

Alan follows Guy Gardner and a small group of heroes to investigate a mysterious distress from Oa, only to be defeated by Hal Jordan, who now calls himself Parallax, having been driven mad after the destruction of his home, Coast City.

He continues to fight crime in his original costumed identity, rebuilding a ring and serving as an elder statesman to the Justice Society of America and to the superhero community in general.

Alan is increasingly physically weakened due to Parallax's failed attempts to mind control him as it did with Jordan, Stewart, Gardner, and Kilowog, so it decides to kill him instead.

A year later, Scott is still active and relatively youthful compared to his true age, but now wears an eyepatch having lost his eye in a Zeta beam transporter accident while returning from space.

Week 4 of the 52 maxiseries reveals that Scott lost his left eye during a period when he and several other superheroes were declared missing approximately 11 months prior to the events of Checkmate #1.

[23] In Blackest Night, Alan and the rest of the JSA battle the reanimated Kal-L and Black Lantern versions of dead Justice Society members.

The JSA meet with Batman's new Justice League and find that Jade, who had been staying on Oa since her resurrection, has returned to Earth in a green meteor, later revealed to be the legendary Starheart that gave Alan his powers.

Just then, Alan awakens and his costume transforms into a suit of armor identical to the one he wears in Kingdom Come, and he then tells the assembled heroes that he intends on destroying the world.

Batman then assembles a small strikeforce consisting of himself, Jade, Hourman, Donna Troy, Jesse Quick, and Mr. America, all of whom have a low chance of being possessed by the Starheart.

Mister Miracle arrives and informs the team that Alan has most likely installed Fourth World defenses in his base and offers to use his knowledge of such technology to guide them through the fortress.

[31] After the events of the "Brightest Day", Alan and the rest of the JSA travel to the city of Monument Point, which has been attacked by a superpowered terrorist named Scythe.

[32] In the subsequent story, it is revealed that Scythe is the product of Nazi genetic engineering, and that Alan and Jay had been tasked by the president with killing the experiment back when he was in infancy during World War 2.

[33] Doctor Mid-Nite discovers that the injuries Alan sustained have rendered him paralyzed, and that any attempt to heal himself could break his constant concentration, which could result in the Starheart once again regaining control of his body.

[35] After taking over Jade, Eclipso has the power of the starheart then defeats and possesses the Justice League's reserve roster, and then badly injures the angel Zauriel.

However, it is ultimately revealed that Donna's death was an illusion conjured by Saint Walker, who used his blue power ring to temporarily trap Eclipso in a state of euphoria.

[44] In "The New Golden Age", Scott is revealed to have a Russian counterpart in Red Lantern, who he fought on occasion and had a truce with when Nazis threatened both North America and Russia.

During his later appearances, he projects a greenish laser beam from his ring capable of doing many things, such as lifting objects, manipulating metals, hypnotizing people, traveling through spacetime, or rewriting reality itself.