The Peanuts characters have been featured on Hallmark Cards since 1960, and can be found adorning clothing, figurines, plush dolls, flags, balloons, posters, Christmas ornaments, and countless other bits of licensed merchandise.

History of Charlie Brown
First Peanuts strip, October 2, 1950

Charlie Brown was one of the original cast members of Peanuts when it debuted in 1950, and the butt of the first joke in the strip. Aside from some stylistic differences in Schulz's art style at the time, Charlie Brown looked much the same. He did, however, wear an unadorned T-shirt; the stripe was added within the first year of publication, in order to add more color to the strip. Charlie Brown stated in an early strip (November 3, 1950) that he was "only four years old", but he aged over the next two decades, being six years old as of November 17, 1957 and "eight-and-a-half years old" by July 11, 1979. Later references continue to peg Charlie Brown as being approximately eight years old. Another early strip, on October 30, 1950, has Patty and Shermy wishing Charlie Brown a happy birthday on that day, although they are not sure they have the date right. Allegedly, he was named for Schulz's love for Edgar Huntly.

Initially, Charlie Brown was more assertive and playful than his character would later become: He would play tricks on other cast members, and some strips had romantic overtones between Charlie Brown and Patty and Violet. He would cause headaches for adults (knocking all the comic books off their stand at a newsstand, for instance), though he was from the start not especially competent at any skill.

Charlie Brown soon evolved into the Sad Sack character he's best known as: feeling enslaved to the care of Snoopy, beset by comments from everyone around him. Common approaches to the strip's storylines included Charlie Brown stubbornly refusing to give in even when all is lost from the outset (e.g., standing on the pitcher's mound alone on the baseball field, refusing to let a torrential downpour interrupt his beloved game), or suddenly displaying a skill and rising within a field, only to suffer a humiliating loss just when he's about to win it all (most famously, Charlie Brown's efforts to win the statewide spelling bee in the feature-length film A Boy Named Charlie Brown). Charlie Brown never receives Valentines or Christmas cards and only gets rocks when he goes trick or treating on Halloween but never loses hope that he will. His misfortunes garnered so much sympathy from the audience that many young viewers in North America of the Be My Valentine, Charlie Brown and It's the Great Pumpkin, Charlie Brown TV specials have sent Valentine cards and Halloween candy respectively to the broadcasting television network in an effort to show Charlie Brown they cared for him. This also extended to protest letters when viewers felt the victimization of Charlie Brown went too far such as in It's Your First Kiss, Charlie Brown where Charlie Brown is publicly derided for making his football team lose when it is obvious that he is not at fault.

Charlie Brown maintained this demeanor until the strip ended its run in 2000, and classic strips run in many newspapers today. He did have occasional victories, though, such as hitting a game-winning home run off a pitch by Roy Hobbs' great-granddaughter on March 30, 1993 (though she later admitted she let him hit the home runs) and soundly defeating "Joe Agate" in a game of marbles on April 11, 1995. Usually, Charlie Brown was a representative for everyone going through a time when they feel like nothing ever goes right for them; however, Charlie Brown refuses to give up. In the final weeks of his strip, determined to finally have a winning baseball season at last, Charlie Brown tried to channel Joe Torre, which made his sister think he was cracking up.

He is also known as Good Ol' Charlie Brown.