-30- has been traditionally used by journalists in North America to indicate the end of a story. It is commonly found at the end of a press release. There are many theories about how the usage came into being, e.g. from that number's use in the 92 Code of telegraphic shorthand to signify the end of a transmission in the American Civil War era. It was included in the Associated Press Phillips Code of abbreviations and short markings for common use. It was commonly used when writing on deadline and sending bits at a time to be typeset, as a necessary way to indicate the end of the article.
In popular culture
- -30-, a 1959 motion picture about work in a Los Angeles newspaper directed by, produced by, and starring Jack Webb.
- "-30-", the series finale of the television series The Wire (2002–2008), capping a season concerning the media and the Baltimore Sun.
- "30", an episode of the television series Law & Order: Criminal Intent about a poisoned reporter.
- In several Superman stories from various titles, failure by a Daily Planet employee to use this signature proved to be a plot point revealing a character's impersonation, mind control, etc.
- At the end of the 1952 film, Park Row, about the birth of the New York Globe in 1886, the film ends with the word "THIRTY" displayed instead of "THE END".
- Kogan, Hadass (2007). "So Why Not 29?". Archived from the original on 2010-12-12. Retrieved 2016-05-22.
- Melton, Rob (2008). "The Newswriter's Handbook: The Word: origin of the end mark -30-" (PDF). Journalism Education Association. p. 9. Archived from the original (PDF) on 2015-11-29. Retrieved 2016-05-22.
- "WESTERN UNION "92 CODE" & WOOD'S "TELEGRAPHIC NUMERALS"". Signal Corps Association. 1996. Retrieved 2008-02-25.
- "So Why Not 29". Retrieved 2018-04-27.
- "Le -trente-". Fédération professionnelle des journalistes du Québec. Archived from the original on 2019-01-26. Retrieved 2015-01-05.