American Comics

Since the introduction of the comic book format in 1934 with the publication of Famous Funnies, the United States has been the leading producer, with only the British comic and Japanese manga as close competitors in terms of quantity of titles. The majority of all comic books in the U.S. are marketed to young adult readers, though they also produce titles for young children as well as adult audiences.

Cultural historians divide the career of the comic book in the U.S. into several ages or historical eras: the Golden Age, the Silver Age, the Bronze Age, and the Modern Age. The exact boundaries of these eras, the terms for which originated in the fandom press, is a debatable point among comic book historians.
Adventures into Darkness, horror stories

The Golden Age is generally thought as lasting from the introduction of Jerry Siegel and Joe Shuster's Superman in 1938 until the late 1940s or early 1950s. During this time, comic books enjoyed considerable popularity; the archetype of the superhero was invented and defined, and many of the most popular superheroes were created. While comics as an art form could theoretically extend as far back in history as sequential cave paintings, comic books are dependent on printing, and the starting point for them in book form is generally considered to be the tabloid-sized The Funnies begun in 1929, or the smaller-sized Funnies on Parade begun in 1933. Both of these were simply reprints of newspaper strips.

The Silver Age of Comic Books is generally considered to date from the first successful revival of the dormant superhero form — the debut of Robert Kanigher and Carmine Infantino's Flash in Showcase #4 (September-October 1956) — and lasts through the early 1970s, during which time Marvel Comics revolutionized the medium with such naturalistic superheroes as Stan Lee and Jack Kirby's Fantastic Four and Stan Lee and Steve Ditko's Spider-Man. There is less agreement on the beginnings of the Bronze and Modern ages. Some suggest that the Bronze Age is still taking place. Starting points that have been suggested for the Bronze Age of comics are Roy Thomas and Barry Windsor-Smith's Conan #1 (October 1970), Denny O'Neil and Neal Adams' Green Lantern/Green Arrow #76 (April 1970) or Stan Lee and Gil Kane's Amazing Spider-Man #96 (May 1971) (the non-Comics Code issue). The start of the Modern Age (occasionally referred to as the Iron Age) has even more potential starting points, but is generally agreed to be the publication of Frank Miller's Batman: The Dark Knight Returns graphic novel and Alan Moore's Watchmen by DC Comics in 1986.

Comics published after World War II in 1945 are sometimes referred to as being from the Atomic Age (referring to the dropping of the atomic bomb), while titles published after November 1961 are sometimes referred to as being from the Marvel Age (referring to the advent of Marvel Comics). However, these eras are referred to far less frequently than the aforementioned designations.

Notable events in the history of the American comic book include the psychiatrist Fredric Wertham's criticisms of the medium in his book Seduction of the Innocent, which prompted the Senate Subcommittee on Juvenile Delinquency to investigate comic books. In response to this attention from both the government and the media, the US comic book industry created the Comics Code Authority in 1954 and drafted the Comics Code.