I am reading a lot of the older comics. And I am seeing heroes/characters appear in each other titles. Spiderman and Torch in Strange Tales, Doctor Doom in Spiderman 5, Ant Man in an issue of Fantastic Four, Hulk in Fantastic Four, Daredevil in Spiderman 16 etc.. But what was the first arc that had heroes from one book continue the story in the book of another hero? Like Daredevil having a story start in his book but carry over to Fantastic Four?
I at first thought the crossover where The Fantastic Four and Avengers battle the Hulk but that was a two parter in FF 25 and 26.
So please my friends help me out