Harold "Hal" Jordan, one of the characters known as Green Lantern, is a superhero appearing in American comic books published by DC Comics. The character was created in 1959 by writer John Broome and artist Gil Kane, and first appeared in Showcase #22 (October 1959). Hal Jordan is a reinvention of the previous Green Lantern who appeared in 1940s comic books as the character Alan Scott. Hal Jordan is a former fighter pilot who works for Ferris Aircraft as a test pilot, a member and occasionally leader of an intergalactic police force called the Green Lantern Corps, as well as a founding member of the Justice League, DC's flagship superhero team, alongside well-known heroes such as Batman, Superman, and Wonder Woman. He fights evil across the universe with a ring that grants him a variety of superpowers, but is usually portrayed as one of the protectors of Sector 2814, which is the sector where Earth resides. His powers derive from his power ring and Green Lantern battery, which in the hands of someone capable of overcoming great fear allows the user to channel their will power into creating all manner of fantastic constructs. Jordan uses this power to fly, even through the vacuum of space; to create shields, swords, and lasers; and to construct his Green Lantern costume, which protects his secret identity in his civilian life on Earth. Jordan and all other Green Lanterns are monitored and empowered by the mysterious Guardians of the Universe, who were developed from an idea editor Julius Schwartz and Broome had originally conceived years prior in a story featuring Captain Comet in Strange Adventures #22 (July 1952) entitled "Guardians of the Clockwork Universe". During the 1990s, Jordan also appeared as a villain. The story line Emerald Twilight saw a Jordan traumatized by the supervillain Mongul's destruction of Jordan's hometown Coast City, adopt the name "Parallax", and threaten to destroy the universe. In subsequent years, DC Comics rehabilitated the character, first by having Jordan seek redemption for his actions as Parallax, and later by revealing that Parallax was in fact an evil cosmic entity that corrupted Jordan and took control of his actions. Between the character's stint as Parallax and his return to DC Comics as a heroic Green Lantern once more, the character also briefly served as the Spectre, a supernatural character in DC Comics stories who acts as God's wrathful agent on