The Green Goblin was created by writer Stan Lee and artist Steve Ditko, and first appeared in The Amazing Spider-Man #14 (July 1964). Although many characters have taken up this identity, Norman Osborn is the original and most well-known Green Goblin. Osborn was originally an amoral industrialist head of Oscorp and father of Spider-Man's best friend, Harry Osborn. Norman Osborn who took a serum which enhanced his physical abilities and intellect but also drove him to insanity. He adopted a Halloween-themed appearance, dressing in a goblin costume, riding on a bat-shaped "Goblin Glider", and using an arsenal of high-tech weapons, notably grenade-like "Pumpkin Bombs", to terrorize New York City.
<--- Issue #14 (July 1964)
The Grotesque Adventure of 'The Green Goblin' Writer: Stan Lee Illustrator: Steve Ditko
The 1st appearance of The Green Goblin who convinces a movie producer to make a movie with Spider-Man fighting the Enforcers and the Goblin. While fighting in a cave, they come across the Hulk.
Issue #17 (October 1964) The Return of the Green Goblin! Writer: Stan Lee Illustrator: Steve Ditko
Flash Thompson starts The Spider-Man Fan Club. First appearance of the Green Goblin's now-iconic Goblin Glider vehicle.
Issue #23 (April 1965) The Goblin and The Gangsters Writer: Stan Lee Illustrator: Steve Ditko
The Green Goblin tries to take over Lucky Lobo's gang by getting Lobo arrested. Instead the police arrest the entire gang leaving nothing for Goblin to take over.
Issue #26 (July 1965) The Man in the Crime-Master Mask Writer: Stan Lee Illustrator: Steve Ditko
The Crime-Master prepares to take over the city's crime gangs, he battles Spider-Man. In the end it's the Green Goblin that captures Spider-Man.
Issue #27 (August 1965) --->
Bring Back My Goblin To Me!
Writer: Stan Lee Illustrator: Steve Ditko
The Goblin takes an unconcious Spider-Man to a meeting of the crime gangs brought together by the Crime Master. The police arrive and Spider-Man escapes. The Green Goblin decides "I'll lay low for a while and then ... when he least expects it ... I'll strike"
Issue #39 (August 1966) How Green Was My Goblin Writer: Stan Lee Illustrator: John Romita Sr
Green Goblin revealed to be Norman Osborn. The Green Goblin discovers Spider-Man's identity.
Issue #40 (Sept. 1966) The End Of The Green Goblin Writer: Stan Lee Illustrator: John Romita Sr
The Green Goblin gets amnesia, forgetting Spider-Man's identity, and returning to his life as Norman Osborn.
Issue #96 (May 1971) ..And Now, the Goblin! Writer: Stan Lee Illustrator: Gil Kane
Peter Parker takes up a job at Norman Osborn's Chemistry lab. Mr. Osborn discovers a Green Goblin storage closet and becomes once again the Goblin.
Issue #97 (June 1971) In the Grip of the Goblin! Writer: Stan Lee Illustrator: Gil Kane
Spider-Man battles the Green Goblin. Harry Osborn's drug habit leads to a complete breakdown.
Issue #98 (July 1971) The Goblin's Last Gasp! Writer: Stan Lee Illustrator: Gil Kane
Spider-Man forces Norman Osborn/Green Goblin to see his ailing son and Mr. Osborn once again returns to normal.
Issue #121 (June 1973) The Night Gwen Stacy Died Writer: Gerry Conway Illustrator: Gil Kane
His memory having been regained, the Green Goblin throws Parker's love, Gwen Stacy, from a tower of either the Brooklyn Bridge (as depicted in the art) or the George Washington Bridge (as given in the text). She dies during Spider-Man's rescue attempt.
Issue #121 (June 1973) The Goblin's Last Stand Writer: Gerry Conway Illustrator: Gil Kane
The Goblin appears to accidentally kill himself in the ensuing battle with Spider-Man when he is impaled by his Glider.
In the epilogue to issue #126 (November 1973), Harry Osborn is revealed to be the person who took the Green Goblin costume off his father's body; he decides to become the Green Goblin.
Willem Dafoe played Norman Osborn and his alter ego the Green Goblin in the 2002 film Spider-Man as the primary antagonist.