A few months after Spider-Man's introduction, publisher Goodman reviewed the sales figures for that issue and was shocked to find it was one of the nascent Marvel's highest-selling comics.:97 A solo ongoing series followed, beginning with The Amazing Spider-Man #1 (cover-dated March 1963). The title eventually became Marvel's top-selling series:211 with the character swiftly becoming a cultural icon; a 1965 Esquire poll of college campuses found that college students ranked Spider-Man and fellow Marvel hero the Hulk alongside Bob Dylan and Che Guevara as their favorite revolutionary icons. One interviewee selected Spider-Man because he was "beset by woes, money problems, and the question of existence. In short, he is one of us.":223 Following Ditko's departure after issue #38 (July 1966), John Romita, Sr. replaced him as penciler and would draw the series for the next several years. In 1968, Romita would also draw the character's extra-length stories in the comics magazine The Spectacular Spider-Man, a proto-graphic novel designed to appeal to older readers. It only lasted for two issues, but it represented the first Spider-Man spin-off publication, aside from the original series' summer annuals that began in 1964.
Halloween costumes are costumes worn on or around Halloween, a festival which falls on October 31. An early reference to wearing costumes at Halloween comes from Scotland in 1585, but they may pre-date this. There are many references to the custom during the 18th and 19th centuries in the Celtic countries of Scotland, Ireland, Mann and Wales. It has been suggested that the custom comes from the Celtic festivals of Samhain and Calan Gaeaf, or from the practise of "souling" during the Christian observance of Allhallowtide. Wearing costumes and mumming has long been associated with festivals at other times of the year, such as on Christmas. Halloween costumes are traditionally based on frightening supernatural or folkloric beings. However, by the 1930s costumes based on characters in mass media such as film, literature, and radio were popular. Halloween costumes have tended to be worn mainly by young people, but since the mid-20th century they have been increasingly worn by adults also.