There’s a related question that has some bearing on the answer to the above question: what is a superhero? There have probably been books (or at least extensive Usenet threads) written on this topic, but a good baseline definition needs to acknowledge both the “super” and the “hero” parts. That is, the person needs to have some superhuman power or powers and has to fight the bad guys. But this basic definition is flawed. Superman is an alien, not human. Batman doesn’t have any super powers…he’s a self-made superhero like Syndrome in The Incredibles. Or can a superhero be anyone (human or no) that fights bad guys and is superior to normal heroes…the cream of the hero crop? And what about a costume or alter ego…are they essential for superheroism? These are all questions well-suited for asking the internet, so have at it: what’s a good definition for a superhero?
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.