Question: The play "Long Day's Journey into Night" was created by an American playwright who died in what year?

Context articles: Long Day's Journey into Night
A Moon for the Misbegotten
Long Day's Journey into Night (1996 film)
February 1956
Long Day's Journey into Night (1962 film)
Eugene O'Neill
Florence Eldridge
Long Day's Journey into Night (1973 film)
Long Day's Journey into Night (disambiguation)
Arthur Miller

Long Day's Journey into Night is a drama play in four acts written by American playwright Eugene O'Neill in 1941–42 but first published in 1956.
 The play is widely considered to be his "magnum opus" and one of the finest American plays of the 20th century.
 It premiered in Sweden in February 1956 and then opened on Broadway in November 1956, winning the Tony Award for Best Play.
A Moon for the Misbegotten is a play by Eugene O'Neill.
 The play is a sequel to O'Neill's "Long Day's Journey into Night", with the Jim Tyrone character as an older version of Jamie Tyrone.
 The play premiered on Broadway in 1957 and has had four Broadway revivals, plus a West End engagement.
Long Day's Journey into Night is a film by Canadian director David Wellington, released in 1996.
 An adaptation of Eugene O'Neill's play "Long Day's Journey into Night", the film starred William Hutt as James, Martha Henry as Mary, Peter Donaldson as Jamie, Tom McCamus as Edmund and Martha Burns as Cathleen.
The world première of Eugene O'Neill's semi-autobiographical play "Long Day's Journey into Night" (written in 1942) takes place at the Royal Dramatic Theatre, Stockholm, in a Swedish language production directed by Bengt Ekerot and starring Lars Hanson.
 It would not appear on Broadway until November of the same year.
Long Day's Journey into Night is a 1962 adaptation of the Eugene O'Neill play.
 It was directed by Sidney Lumet and produced by Ely Landau with Joseph E. Levine and Jack J. Dreyfus, Jr. as executive producers.
 The screenplay was not adapted but used directly from O'Neill's play, the music score by André Previn, and the cinematography by Boris Kaufman.
Eugene Gladstone O'Neill (October 16, 1888 – November 27, 1953) was an American playwright and Nobel laureate in Literature.
 His poetically titled plays were among the first to introduce into American drama techniques of realism earlier associated with Russian playwright Anton Chekhov, Norwegian playwright Henrik Ibsen, and Swedish playwright August Strindberg.
 The drama "Long Day's Journey into Night" is often numbered on the short list of the finest American plays in the 20th century, alongside Tennessee Williams's "A Streetcar Named Desire" and Arthur Miller's "Death of a Salesman".
Florence Eldridge (born Florence McKechnie, September 5, 1901, Brooklyn, New York – August 1, 1988, Long Beach, California) was an American actress.
 She was nominated for the Tony Award for Best Lead Actress in Play in 1957 for her performance in "Long Day's Journey into Night".
Long Day's Journey Into Night is a 1973 videotaped television adaptation of the Eugene O'Neill play of the same name.
 It was directed by Michael Blakemore and Peter Wood with Cecil Clarke as executive producer.
 The recording is a version of Royal National Theatre's 1971 staging of the play, and features Laurence Olivier (Tyrone), Constance Cummings (Mary), Denis Quilley (Jamie), Ronald Pickup (Edmund), and Maureen Lipman (Cathleen).
Long Day's Journey into Night may refer to: "Long Day's Journey into Night", a play by Eugene O'Neill.
 It may also refer to
Arthur Asher Miller (October 17, 1915 – February 10, 2005) was an American playwright, essayist, and figure in twentieth-century American theater.
 Among his most popular plays are "All My Sons" (1947), "Death of a Salesman" (1949), "The Crucible" (1953) and "A View from the Bridge" (1955, revised 1956).
 He also wrote several screenplays and was most noted for his work on "The Misfits" (1961).
 The drama "Death of a Salesman" has been numbered on the short list of finest American plays in the 20th century alongside "Long Day's Journey into Night" and "A Streetcar Named Desire".