Green Lantern

Green Lantern is the name of several superheroes appearing in American comic books published by DC Comics. While the original debuted in All-American Comics #16 (July, 1940), the associated characters and it's core concept has changed signficantly over it's publication history; while the original concept was tied to a crime-fighting superhero who used the aid of a magic ring, the later concept (existing con-currently to the original) casts a set of characters in a science-fictional element as law enforcment officers.

The original concept is tied to Alan Scott, the original version of the character created in 1940 by Martin Nodell with scripting or co-scripting of the first stories by Bill Finger during the Golden Age. Scott battled common criminals in Capitol City (and later, Gotham City) with the aid of his magic ring tied to the force known as Starheart. Overtime, Scott's character would be heavily tied to the Justice Society of America and became an inspiration for superheroes in the 21st century. The later concept would take forumlate during the Silver Age onwards, depicting characters with the name as members as members (chiefly focuses on those form Earth) of the Green Lantern Corps, an intergalactic law enforcement agency that fights the forces of evil with the aid of rings ("power rings") that grants a variety of extraordinary powers, all of which come from imagination, fearlessness, and the electromagnetic spectrum of emotional willpower. The concept was first explored during the Silver Age by Dennis O'Neil and Neal Adams with Hal Jordan, a test pilot granted the membership Green Lantern Corps' power ring upon the death of alien Green Lantern Abin Sur and inherits his position as the Green Lantern in charge of Earth and becomes legendary over time.