"Spider-Man is a fictional Marvel Comics superhero. The character was created by writer-editor Stan Lee and writer-artist Steve Ditko. He first appeared in Amazing Fantasy #15 (Aug. 1962). Lee and Ditko conceived of the character as an orphan being raised by his Aunt May and Uncle Ben, and as a teenager, having to deal with the normal struggles of youth in addition to those of a costumed crime fighter. Spider-Man's creators gave him super strength and agility, the ability to cling to most surfaces, shoot spider-webs using devices of his own invention which he called "web-shooters," and react to danger quickly with his "spider-sense", enabling him to combat his foes.
When Spider-Man first appeared in the early 1960s, teenagers in superhero comic books were usually relegated to the role of sidekick to the protagonist. The Spider-Man series broke ground by featuring Peter Parker, a teenage high school student to whose "self-obsessions with rejection, inadequacy, and loneliness" young readers could relate.:210 Unlike previous teen heroes such as James Buchanan "Bucky" Barnes and Robin, Spider-Man did not benefit from being the protegé of any adult mentors like Captain America and Batman, and thus had to learn for himself that "with great power comes great responsibility" - a line included in a text box in the final panel of the first Spider-Man story, but later retroactively attributed to his guardian, the late Uncle Ben."
Source: Wikipedia, "Spider-Man", available under the CC-BY-SA License.