Red herring
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A red herring is a metaphor for a diversion or distraction from an original objective. An example can be found in academic examinations, particularly in mathematics and physical sciences. In some questions, information may be provided which is not necessary to solve the given problem. The presence of extraneous data often causes those taking the exam to spend too much time on the question, reducing the time given to other problems and potentially lowering the resulting score. Red herrings are frequently used in literature and cinema mysteries, where a character is presented to make the reader/viewer believe he/she is the obvious perpetrator, when in reality it is someone far less suspect.
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The phrase may relate to saving a hunted fox by dragging a smoked herring across its trail. This act would create a diversion through the strong smell of kippers. The Oxford English Dictionary records its first written use occurring in 1686 in this context: "To draw a red herring across the track". Michael Quinion says it is unlikely that any such act ever occurred.[1]
The use of a red herring in this way is described by James Rodwell in his 1863 book The Rat: Its History & Destructive Character, with Numerous Anecdotes. Here he describes the red herring as a "kind of witch", which when dragged along the floor to make a scented trail, is a method "commonly used for charming rats" and removing them from certain places (pp 194).
Other references for the term are that they were artificial red fish that was dropped down a river to distract fishers fishing for salmon. The dummy was a bright red in colour and had a shining free moving piece on the end of it that would make it look like it was a swimming fish.
In finance and investment, red herring is used to denote a draft prospectus (finance), so-called because of the red print on the cover. See Red herring prospectus.
- ^ Quinion, Michael (1996-08-03). The Lure of the Red Herring. World Wide Words. Retrieved on 2007-06-12. “In the half dozen books on aspects of the history of fox hunting I have searched out, there is not one reference to the use of a red herring to lay a false scent”