Question:  Démophoon  is an opera by a composer who spend most of his working life where?

Context articles: All Day Long: A Portrait of Britain at Work
Jacopo Foroni
George B. Pegram
Gustav Christian Schwabe
Eight-hour day
Luigi Cherubini
Démophoon
Finnish Institute of Occupational Health
Lokenath Bhattacharya
Margo Hughes

All Day Long: A Portrait of Britain at Work is a book by Joanna Biggs first published in April 2015.
 Biggs toured Britain, interviewing 32 people in different jobs and wrote about each to paint a picture of modern working life.
 Writing in "The Guardian", Andy Beckett described it as a "beautifully observed set of case studies" which illustrate the author's contention that work in Britain has changed since the 2008 debt crisis and the idea that good work brings a good life no longer holds.
 Yasmin Alibhai-Brown in "The Independent" describes it as a "devastating study of why capitalism isn't working".
Jacopo Foroni (Valeggio sul Mincio, Verona 26 July 1825 — Stockholm, 8 September 1858) was an Italian opera composer and conductor who spent most of his working life in Sweden.
George Braxton Pegram (October 24, 1876 – August 12, 1958) was an American physicist who played a key role in the technical administration of the Manhattan Project.
 He graduated from Trinity College (now Duke University) in 1895, and taught high school before becoming a teaching assistant in physics at Columbia University in 1900.
 He was to spend the rest of his working life at Columbia, taking his doctorate there in 1903 and becoming a full professor in 1918.
 His administrative career began as early as 1913 when he became the department's executive officer.
 By 1918, he was Dean of the Faculty of Applied Sciences but he resigned in 1930 to relaunch his research activities, performing many meticulous measurements on the properties of neutrons with John R. Dunning.
 He was also chairman of Columbia's physics department from 1913 to 1945.
Gustav Christian Schwabe (10 May 1813 – 10 January 1897) was a German-born merchant and financier who funded companies such as John Bibby & Sons, Harland and Wolff and the White Star Line.
 Born in Hamburg, Germany, Schwabe moved to Liverpool in 1838 and spent his working life there.
 Later, Schwabe would spend more time at his house in London, and retired in 1893.
The eight-hour day movement or 40-hour week movement, also known as the short-time movement, was a social movement to regulate the length of a working day, preventing excesses and abuses.
 It was started by James Deb and had its origins in the Industrial Revolution in Britain, where industrial production in large factories transformed working life.
 The use of child labour was common.
 The working day could range from 10 to 16 hours, and the work week was typically six days a week.
Luigi Cherubini (] ; 8 or 14 September 1760 – 15 March 1842) was an Italian composer who spent most of his working life in France.
 His most significant compositions are operas and sacred music.
 Beethoven regarded Cherubini as the greatest of his contemporaries.
Démophoon (sometimes spelt Démophon) is an opera by the composer Luigi Cherubini, first performed at the Académie Royale de Musique (the Paris Opera) on 2 December 1788.
 It takes the form of a "tragédie lyrique" in three acts.
 The libretto, by Jean-François Marmontel, is based on "Demofoonte" by Metastasio.
The Finnish Institute of Occupational Health (FIOH, in Finnish Työterveyslaitos) is an organization that promotes the positive aspects of working life and helps to minimise the drawbacks.
 FIOH does so by studying how health, well-being and safety at work can be best promoted such as having a healthy organisation or a sound safety culture at work.
 FIOH also studies which risks in working life can cause adverse health effects such as exposure to chemicals at work and which interventions help best to minimise these risks such as ventilation or personal protective equipment.
Lokenath Bhattacharya (Bengali: লোকনাথ ভট্টাচার্য ; 1927–2001) was a prolific Bengali writer who chose to remain in isolation.
 Though 15 of his books have been translated into French, only 'Babughater Kumari Maach' (The Virgin Fish of Babughat) has been translated into English.
 He finished his doctorate study in Paris.
 After spending his working life in India, he went back to France to spend the last decade of his life with his wife who is French.
 He has translated the poetry of Rimbaud, Henri Michaux into Bengali.
 He died in Egypt in a car accident.
Margo Hughes is a fictional character on the daytime soap opera "As the World Turns" a show about working life in the fictional town of Oakdale.
 She was first played by Margaret Colin, and then by Hillary B. Smith for six years.
 However the actress most recognized for the role is Ellen Dolan, who played the character continuously from 1989 until 2010, with a break from January 1993 to June 1994.