Alan Scott in the context of "Hal Jordan"

Green Lantern is the name of several superheroes appearing in American comic books published by DC Comics. They fight evil with the aid of rings that grant them a variety of extraordinary powers, all of which come from imagination, fearlessness, and the electromagnetic spectrum of emotional willpower. The characters are typically depicted as members of the Green Lantern Corps, an intergalactic law enforcement agency.

The first Green Lantern character, Alan Scott, was created in 1940 by Martin Nodell with scripting or co-scripting of the first stories by Bill Finger during the Golden Age of Comic Books and usually fought common criminals in Capitol City (and later, Gotham City) with the aid of his magic ring. For the Silver Age of Comic Books, John Broome and Gil Kane reinvented the character as Hal Jordan in 1959 and introduced the Green Lantern Corps, shifting the nature of the character from fantasy to science fiction. During the Bronze Age of Comic Books, Dennis O'Neil and Neal Adams introduced John Stewart, a new member of the Corps who was one of DC's first Black superheroes. Other notable Green Lanterns include Guy Gardner, Kyle Rayner, Simon Baz, Jessica Cruz and Jo Mullein.

Milton "Bill" Finger (February 8, 1914 – c. January 18, 1974) was an American comic book writer who significantly contributed to the DC Comics character Batman with his creator, Bob Kane. Despite making major (sometimes, signature) contributions as an innovative writer, visionary mythos/world builder and illustration architect, Finger (like other creators of his era) was often relegated to ghostwriter status on many comics—including those featuring Batman, and the original Green Lantern, Alan Scott.

While Kane privately admitted in a 1980s audio interview with his autobiographer that Finger was responsible for "50–75% of all the creativity in Batman," he publicly denied Finger had been anything more than a subcontractor executing Kane's ideas for decades. As a result, Finger died in obscurity and poverty while the Batman brand, and Kane, amassed international fame and wealth. In the 2000s, Finger biographer Marc Tyler Nobleman's research uncovered previously unknown heirs. At the urging of Nobleman, the online comics fan community, and others, Finger's granddaughter revived the fight to restore his lost legacy, which continued for years. In 2015, DC Comics's parent company conditionally agreed to recognize Finger's intellectual property claim as co-creator of the Batman characters and mythos, officially adding his name, going forward, to the "created by" credit line Kane had been contractually guaranteed in 1939.

Martin Nodell (/noʊˈdɛl/; November 15, 1915 – December 9, 2006) was an American cartoonist and commercial artist, best known as the creator of the Golden Age superhero Green Lantern. Some of his work appeared under the pen name Mart Dellon.

The Justice Society of America (JSA) is a superhero team appearing in American comic books published by DC Comics. It was created by writer Gardner Fox and editor Sheldon Mayer during the Golden Age of Comic Books. It first appeared in All Star Comics #3 (Winter 1940–1941), making it the first team of superheroes in comic books. Its original members were Doctor Fate, Hourman, the Spectre, Sandman, Atom, the Flash, Green Lantern and Hawkman.

The team was initially popular, but after superhero comics waned in the late 1940s, the JSA's adventures ceased with issue #57 of the title (March 1951). During the Silver Age of Comic Books, DC Comics reinvented several Justice Society members and brought many of them together in a new team, the Justice League of America. Other JSA members remained absent from comics for ten years until Jay Garrick appeared alongside Barry Allen, his Silver Age counterpart, in The Flash #123 (September 1961). The Justice Society was established as existing on "Earth-Two" and the Justice League on "Earth-One", different versions of Earth in different universes. This allowed for annual cross-dimensional team-ups of the teams between 1963 and 1985. New series, such as All-Star Squadron, Infinity, Inc., and a new All-Star Comics, featured the JSA, their children, and their heirs and explored the issues of aging, generational differences, and contrasts between the Golden Age and subsequent eras.