The Comic Book in America
A comic book is a magazine or book containing the sequential art in the form of a narrative. Comic books are often called comics for short. Although the term implies otherwise, the subject matter in comic books is not necessarily humorous, and in fact its dramatic seriousness varies widely. The term "comics" in this context does not refer to comic strips (such as Peanuts or Dilbert). In the early to mid-21st century, greater acceptance of the comics form among the general reading populace coincided with a greater usage of the term graphic novel, often meant to differentiate a book of comics with a spine from its stapled, pamphlet form, but the difference between the terms seems fuzzy at best as comics become more widespread in libraries, mainstream bookstores and other places.The earliest comic books were simply collections of comic strips that had originally been printed in newspapers. The commercial success of these collections led to work being created specifically for the comic-book form, which fostered specific conventions such as splash pages. Long-form comic books, generally with hardcover or trade-paper binding came to be known as graphic novels, but as noted above, the term's definition is especially fluid. Like jazz and a handful of other cultural artifacts, comic books are a rare indigenous American art form, though prototypical examples of the form exist.
American comic books have become closely associated with the superhero sub-genre. In the U.K., the term comic book is used to refer to American comic books by their readers and collectors, while the general populace would mainly consider a comic book a hardcover book collecting comics stories. The analogous term in the United Kingdom is a comic, short for comic paper or comic magazine.
Since the invention of the comic book format in the 1930s, the United States has been the leading producer, with only the British comic (during the inter-war period through the 1970s) and Japanese manga as close competitors in terms of quantity of titles (although, Japan outweighs America currently in overall sales by a vast margin). The majority of all comic books in the U.S. are marketed at younger teenagers, though the market also produces work for general as well as more mature audiences.
The history of the comic book in the United States is split into several ages or historical eras: The Platinum Age, 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 fandom press, is a debatable point among comic book historians. The Golden Age is generally thought as lasting from 1938's introduction of Superman until the early 1950s, during which comic books enjoyed a surge of popularity, the archetype of the superhero was invented and defined, and many of comic books' most popular superheroes debuted. The Platinum Age refers to any material produced prior to this.
The Silver Age of Comic Books is generally considered to date from the first successful revival of the dormant superhero form, the debut of the Barry Allen Flash in Showcase #4 (Sept.-Oct. 1956), and last through the early 1970s, during which time Marvel Comics revolutionized the medium with such naturalistic superheroes as the Fantastic Four and Spider-Man. The beginings of the Bronze and Modern ages are far more disputable. Indeed, some suggest that we are still in the Bronze Age. Starting points that have been suggested for the Bronze Age of comics are Conan #1 (Oct. 1970), Green Lantern/Green Arrow #76 (Apr. 1970) or Amazing Spider-Man #96 (May 1971) . The start of the Modern Age has even more potential starting points, but is most likely the publication of Alan Moore's Watchmen in 1986.
Information courtesy of freedictionary.com