Question: In what decade did the director of the film The Day of the Dolphin begin his career? 

Context paragraphs:
Georges Delerue: Georges Delerue (12 March 1925 – 20 March 1992) was a French composer who composed over 350 scores for cinema and television.  Delerue won numerous important film music awards, including an Academy Award for "A Little Romance" (1980), three César Awards (1979, 1980, 1981), two ASCAP Awards (1988, 1990), and one Gemini Award for "Sword of Gideon" (1987).  He was also nominated for four additional Academy Awards for "Anne of the Thousand Days" (1969), "The Day of the Dolphin" (1973), "Julia" (1977), and "Agnes of God" (1985), four additional César Awards, three Golden Globe Awards, and one Genie Award for "Black Robe" (1991).

Charles Martin Smith: Charles Martin Smith (born October 30, 1953) is an American film actor, writer, and director.  He is best known for his roles in "American Graffiti" (1973), "The Buddy Holly Story" (1978), "Never Cry Wolf" (1983), "Starman" (1984), "The Untouchables" (1987), "Deep Cover" (1992), "Speechless" (1994) and "Deep Impact" (1998).  He is further known for directing the films "The Snow Walker" (2003), "Dolphin Tale" (2011) and "Dolphin Tale 2" (2014).

The Day of the Dolphin: The Day of the Dolphin is a 1973 American science-fiction thriller film directed by Mike Nichols and starring George C. Scott.  Based on the 1967 novel "Un animal doué de raison" (lit.  "A Sentient Animal"), by French writer Robert Merle, the screenplay was written by Buck Henry.

Dolphin–Palmetto Interchange: The Dolphin–Palmetto Interchange, also known as 826–836, is a complex four-level stack interchange in Miami-Dade County, Florida.  It primarily serves as a highway interchange between State Road 826 (SR 826, Palmetto Expressway) and SR 836 (Dolphin Expressway), but also has ramps to surface streets such as SR 969 (Milam Dairy Road) and Flagler Street.  The reconstruction project was completed in phases from 2012 to 2015-2016, at a cost of about $560 million, with related construction beginning in 2009, replacing the old two-level diamond interchange.  The interchange was considered well beyond safe capacity, serving over 400,000 vehicles per day.  The reconstruction was the final phase in a 12-step program to improve the highly trafficked Palmetto Expressway, though in 2014 a new project to add express lanes to the Palmetto Expressway was proposed, to begin construction in 2016.  Much work also remains for the Dolphin Expressway.  Work took place with phased detours, closures, and openings.  All roads involved were kept open throughout construction.  Much of the new interchange opened in October 2015, including the two highest flyovers, with completion at that point scheduled for March 2016.  By summer 2016, the interchange was objectively complete.  The official announcement came in early October, very near budget ($563 million) but a couple years over time.  The project included moving a drainage canal and construction of 45 individual bridges, with the interchange serving 430,000 vehicles daily.  The main four levels of the interchange are the Palmetto at ground level under the Dolphin Expressway, the Dolphin-to-Palmetto left-hand flyovers, then the Palmetto-to-Dolphin left-hand flyovers on top.  As of 2016, it's the largest stack interchange in Miami (surpassing the Midtown Interchange).

Rory Mallinson: Rory Mallinson (October 27, 1913 – March 26, 1976) was an American actor of film and television.  Born on October 27, 1913 in Atlanta, Georgia, Mallinson would begin his acting career after signing a contract with Warner Brothers in 1945.  That year he would have a small role in the film, "Pride of the Marines", starring John Garfield and Eleanor Powell.  Mallinson would continue making films through the 1940s, and throughout the 1950s, appearing in over 90 films during this period.  Notable films in which he would perform include: a featured role in the 1947 film noir "Dark Passage", starring Humphrey Bogart and Lauren Bacall; "Mighty Joe Young" (1949); the Abbott and Costello vehicle, "Abbott and Costello Meet the Invisible Man" (1951); the 1952 western, "Springfield Rifle", starring Gary Cooper; and Howard Hawks' 1952 film, "The Big Sky", which stars Kirk Douglas, Dewey Martin, and Elizabeth Threatt.  In the early 1950s, he also had a featured role in the film serial, "Blackhawk".  His final performance in the film industry would be in the western, "Westbound" (1959), starring Randolph Scott and Virginia Mayo.  During the 1960s, his career diminished, and he would only make a handful of guest appearances on several television series during the decade, including performances on "Cheyenne" and "Mannix".  Mallinson died on March 26, 1976 in Los Angeles, California.

F. Clever Bald: Frederick Clever Bald (August 12, 1897 - December 12, 1970) was a teacher and authority on early Michigan history and served as director of the Bentley Historical Library at the University of Michigan.  Following service in France with an ambulance unit during World War I, Bald completed his college education and embarked on a teaching career in Detroit, Michigan before returning to graduate school to study the history of the Northwest Territory.  The subject of his dissertation was Detroit during its first decade under American occupation, subsequently published as "Detroit's First American Decade 1796 to 1805".  Bald also authored the book "Michigan in Four Centuries" as well as numerous articles.  During World War II, Bald was appointed University War Historian at the University of Michigan, beginning his affiliation with the Michigan Historical Collections, forerunner of the Bentley Historical Library.  He served as director of the Michigan Historical Collections from 1960 to 1966.

Dan Ouellette: Dan Ouellette is an American artist, illustrator, director, author and production designer.  He began drawing as a child inspired by Escher, Dalí and Moebius.  His drawings usually begin with very rough sketches and are intended to capture a moment of tension or eroticism.  His art pushes his audience into areas where people feel less than comfortable, stating that the "US which is so puritanical, our bodies are usually a great source of anxiety and fear".  As a production designer, he has designed over fifteen independent feature films in the past decade as well as numerous commercials and music videos.  He is best known as the director for the music videos "Blue" and "Looking Glass" by The Birthday Massacre, receiving over 4 million combined views on YouTube, and has directed music videos for the industrial band Android Lust.  He has done production design for many films over the years including "Chasing Sleep" starring Jeff Daniels.  Dan's artwork is strongly themed around surrealism and mostly done in pencil.  As an artist he has exhibited widely.  He has been published in numerous anthology art books including "Bio-Mannerism" which also features work by H.R. Giger and Beksinski, and he has been featured in magazines internationally.  David Bowie commented while looking at Dan's art that he has noticed a strong influence of science fiction on contemporary art.  Giger saw a different aspect, saying simply "Very bony."  He grew to adore the cinema of Fellini and later to marvel at Lynch's "Eraserhead".  Rather than pursue a formal education in the fine arts he chose to study the craft of film making and after college he became a production designer working on feature films in New York City starting with his work as a production designer for Hal Hartley in 1990 with Trust and then, in 1992, with Simple Men.

Hardy Jones: Hardy Jones is a wildlife and conservation filmmaker.  He began his career in radio at WNOE in New Orleans and has worked for United Press International, The Peruvian Times, and CBS News.  He has been a television documentary producer since 1978 and has produced over 75 films for PBS, Discovery, TBS, and National Geographic.  His first film, entitled DOLPHIN, depicts a school of spotted dolphins residing 40 miles north of Grand Bahama island.  Since 1978 Jones has returned countless times to the Bahamas to visit these dolphins and film them.  Some of the dolphins have become internationally famous.  Chopper, a 27-year-old male, was filmed by Jones for the first time in 1979 and appeared in the 2005 PBS film "The Dolphin Defender".

Mike Nichols: Mike Nichols (born Mikhail Igor Peschkowsky; November 6, 1931 – November 19, 2014) was an American film and theatre director, producer, actor and comedian.  He was noted for his ability to work across a range of genres and an aptitude for getting the best out of actors regardless of their acting experience.  Nichols began his career in the 1950s with the comedy improvisational troupe, The Compass Players, predecessor of The Second City, in Chicago.  He then teamed up with his improv partner, Elaine May, to form the comedy duo Nichols and May.  Their live improv acts were a hit on Broadway resulting in three albums, with their debut album winning a Grammy Award.

Midway University: Midway University is an independent, liberal arts university with approximately 1,800 students located in Midway, Kentucky.  Related by covenant to the Christian Church (Disciples of Christ), it currently offers two and four-year degrees.  Midway was the only women's college in Kentucky until 2016.  In the Fall of 2016, Midway University admitted men to the Day College for the first time.  The Day College offers majors in business, marketing, equine studies, sports management, english, mathematics, biology, nursing, psychology, criminal justice and teacher education.  In addition to the Day College, Midway University offers programs to adult men and women, through the evening and weekend School for Career Development (SCD), offered on the Midway Campus and in more than 18 sites across Kentucky, and also through Midway University "ONLINE".  Both SCD and "ONLINE" offer accelerated degree-completion programs for working adults.  In May 2016, Midway's Board of Trustees voted unanimously to begin admitting male undergraduates for the first time in the school's history in the fall 2017 semester.

Supporting paragraphs: The Day of the Dolphin Mike Nichols
Answer: 1950s