Green Lantern is the name of several fictional characters, superheroes appearing in comic books published by DC Comics. The first (Alan Scott) was created by writer Bill Finger and artist Martin Nodell in All-American Comics #16 (July 1940).
Each Green Lantern possesses a power ring that gives the user great control over the physical world as long as the wielder has sufficient willpower and strength to wield it. While the ring of the Golden Age Green Lantern (Alan Scott) was magically powered, the rings worn by all subsequent Lanterns were technological creations of the Guardians of the Universe, who granted such rings to worthy candidates. These individuals made up the intergalactic police force known as the Green Lantern Corps.