Marvel was started in 1939 by Martin Goodman as Timely Comics, and by 1951 had generally become known as Atlas Comics. The Marvel era began in 1961, the year that the company launched The Fantastic Four and other superhero titles created by Stan Lee, Jack Kirby, Steve Ditko and many others. The Marvel brand, which had been used over the years, was solidified as the company's primary brand.
Marvel counts among its characters such well-known superheroes as Spider-Man, Iron Man, Captain America, Hulk, and Black Widow, as well as popular superhero teams such as the Avengers, the X-Men, the Fantastic Four and the Guardians of the Galaxy. Its stable of well-known supervillains includes the likes of Doctor Doom, Magneto, Thanos, Green Goblin, and the Kingpin. Most of Marvel's fictional characters operate in a single reality known as the Marvel Universe, with most locations mirroring real-life places; many major characters are based in New York City.
Pulp-magazine publisher Martin Goodman created the company later known as Marvel Comics under the name Timely Publications in 1939. Timely's first publication, Marvel Comics #1 (cover dated Oct. 1939), included the first appearance of Carl Burgos' android superhero the Human Torch, and the first appearances of Bill Everett's anti-hero Namor the Sub-Mariner, among other features. The issue was a great success. The company's first true editor, writer-artist Joe Simon, teamed with artist Jack Kirby to create one of the first patriotically themed superheroes, Captain America, in Captain America Comics #1 (March 1941). It, too, proved a hit.
In 1961, writer-editor Stan Lee revolutionized superhero comics by introducing superheroes designed to appeal to older readers than the predominantly child audiences of the medium, thus ushering what Marvel later called the Marvel Age of Comics. Modern Marvel's first superhero team, the titular stars of The Fantastic Four #1 (Nov. 1961), broke convention with other comic book archetypes of the time by squabbling, holding grudges both deep and petty, and eschewing anonymity or secret identities in favor of celebrity status. Subsequently, Marvel comics developed a reputation for focusing on characterization and adult issues to a greater extent than most superhero comics before them, a quality which the new generation of older readers appreciated. Eschewing such comic book tropes as secret identities and even costumes at first, having a monster as one of the heroes, and having its characters bicker and complain in what was later called a "superheroes in the real world" approach, the series represented a change that proved to be a great success.
Marvel often presented flawed superheroes, freaks, and misfits—unlike the perfect, handsome, athletic heroes found in previous traditional comic books. Some Marvel heroes looked like villains and monsters such as the Hulk and the Thing. This naturalistic approach even extended into topical politics. 
