Created by Stan Lee and Jack Kirby, this issue, published in 1961, marks the beginning of the adventures of the Fantastic Four, a team of superheroes who gain supernatural powers after exposure to cosmic rays. The four superheroes featured in this book are Mister Fantastic (Reed Richards), Invisible Woman (Susan Storm), the Human Torch (Johnny Storm), and the Thing (Ben Grimm). It was, in fact, the first superhero team title to be produced by Marvel Comics and is one of the few Marvel titles from the Silver Age of Comic Books. In April 2022, a copy of this issue sold for a staggering $1.5 million.
“Fantastic Four vol.1-1 (Nov. 1961)” (Fair use) via Commons Wikimedia