Question: Home Fire is novel that reimagines a tragedy by Sophocles written in or before what year?
Context: The Home Fire Sprinkler Coalition (HFSC) was founded in 1996.  It is a nonprofit organization working in the United States and Canada.  HFSC's web site details its mission statement and board members.  For several years, the United States Fire Administration has had a partnership with HFSC.  Since 1997, HFSC has worked with Ron Hazelton as its spokesperson.  HFSC has earned several federal Fire Prevention & Safety Grants, primarily to develop free educational materials for use by fire departments.  In 2010, HFSC collaborated with FM Global to study the environmental impact of home fires. Home Fire is the seventh novel by Kamila Shamsie, reimagining Sophocles's "Antigone" in a contemporary setting.  It has been longlisted for the Booker Prize. The William Booth Memorial Home fire occurred on 13 August 1966 at the William Booth Memorial Home for destitute and alcoholic men in Melbourne, Australia, and remains the nation's deadliest building fire.  It started on the third floor after a boarder knocked over an illegal heater.  The fire smoldered for several hours in room #1 and exploded after a fellow boarder opened the room's door.  A backdraft and flashover ensued, and fire and smoke engulfed the third and fourth floors.  Most of the 30 men who died were caged in their cyclone mesh-covered rooms and had no time to escape. Oedipus rex is an "Opera-oratorio after Sophocles" by Igor Stravinsky, scored for orchestra, speaker, soloists, and male chorus.  The libretto, based on Sophocles's tragedy, was written by Jean Cocteau in French and then translated by Abbé Jean Daniélou into Latin; the narration, however, is performed in the language of the audience. The Wincrest Nursing Home fire took place on Friday, January 30, 1976, in Chicago, United States.  The fire occurred when an arsonist set a wardrobe closet on fire at the Wincrest Nursing Home building, located at 6326 N. Winthrop Avenue.  The alarm sounded at 11:30 a.m. and the fire was put out at 1:30 p.m. Although the building itself sustained minor smoke, fire and water damage, 23 people died from smoke inhalation.  A 21-year-old housekeeper was arrested by authorities and was charged with multiple counts of arson. Electra or Elektra (Ancient Greek: Ἠλέκτρα , "Ēlektra") is a Greek tragedy by Sophocles.  Its date is not known, but various stylistic similarities with the "Philoctetes" (409 BCE) and the "Oedipus at Colonus" (401 BCE) lead scholars to suppose that it was written towards the end of Sophocles' career. Sophocles' Ajax, or Aias ( or ; Ancient Greek: Αἴας ] , gen. Αἴαντος ), is a Greek tragedy written in the 5th century BCE.  "Ajax" may be the earliest of Sophocles' seven tragedies to have survived, though it is probable that he had been composing plays for a quarter of a century already when it was first staged.  It appears to belong to the same period as his "Antigone", which was probably performed in 442 or 441 BCE, when he was 55 years old.  The play depicts the fate of the warrior Ajax, after the events of the "Iliad" but before the end of the Trojan War. Antigone ( ; Ancient Greek: Ἀντιγόνη ) is a tragedy by Sophocles written in or before 441 BC. Home Fire is the fourth album by Irish musician/songwriter Ron Kavana.  Released in 1991 on the Special Delivery label of Topic Records(and the next year in America on Green Linnet), the album is really a joint project with Terry Woods, formerly of The Pogues.  The album features two Kavana/Woods co-writes, including "Young Ned Of The Hill", previously recorded by The Pogues on the album "Peace and Love".  About half the tracks are performed by Kavana and Woods unaccompanied, the other half with other musicians. The Golden Age Nursing Home fire took place soon after 4:45 am on November 23, 1963, a mile north of Fitchville, Ohio, United States, killing 63 residents.  The fire, which was featured in the 2006 documentary "Fireland" by Justin Zimmerman, has largely been forgotten since it came in the immediate aftermath of the assassination of President John F. Kennedy.
Answer: 441 BC