The Night Gwen Stacy Died
The Amazing Spider-Man #121-122This was a storyline so iconic that it ended the Silver Age of comics, ushering in a more grounded, realistic Bronze Age, more akin to comics today.
During a battle between Spidey and the Green Goblin (one of his greatest nemeses), the love of Peter Parker’s life, Gwen Stacy, is killed. Worse yet, the way things played out, Peter will never know if she accidentally died by his own hand, or if the Goblin had already killed her. This is arguably the most defining moment in Spider-Man’s life, save for the death of his Uncle Ben, and is the definitive Spider-Man story.