The Separation is a novel by British writer Christopher Priest, published in 2002.
 It is an alternate history revolving around the experiences of identical twin brothers during the Second World War, during which one becomes a pilot for the RAF, and the other, a conscientious objector, becomes an ambulance driver for the Red Cross.
 The author introduces a deliberate confusion by giving these brothers identical initials – J.L. Sawyer – one known as Jack (the pilot) and the other as Joe (the ambulance driver).
Tadros also known as Les Frères Tadros / the Tadros Brothers / Les jumeaux Tadros / Duo Tadros are a Montreal, Quebec-based Canadian musical duo consisting of singer-songwriters (identical twin brothers) Daniel "Dan" Tadros and Eric Tadros (born in Montreal in 1976).
 The Tadros brothers, of mixed Egyptian and Italian origin, are multilingual performers with songs composed in both French and English, and also singing in Spanish and Italian.
 They are the only artists signed to "Due Belier Disques" record label, which is the label they own.
"Kaminey" is a 2009 Indian caper thriller film directed by Vishal Bhardwaj and produced by Ronnie Screwvala.
 Shahid Kapoor, Priyanka Chopra, and Amol Gupte star in the lead roles.
 The film's screenplay was written by Bhardwaj, Abhishek Chaubey, Sabrina Dhawan, and Supratik Sen. Bhardwaj also composed the soundtrack of the film, with lyrics written by Gulzar.
 "Kaminey" was edited by A. Sreekar Prasad, and Meghna Manchanda Sen, and the cinematography was provided by Tassaduq Hussain.
 Set against the backdrop of the Mumbai underworld, the film focuses on the rivalry between identical twin brothers both played by Kapoor, one with a lisp and the other with a stutter, over the course of a single day.
"I'm Gonna Be (500 Miles)" is a song written and performed by Scottish duo The Proclaimers, and first released as the lead single from their 1988 album "Sunshine on Leith".
 The song reached number 11 in the UK Singles Chart on its initial release, and it has since become their most popular song worldwide, initially becoming a number 1 hit in Iceland, before reaching number 1 in both Australia and New Zealand in early 1989.
Le Boeuf Brothers is a modern jazz group based in New York City led by identical twin brothers, Remy Le Boeuf (saxophonist/composer) and Pascal Le Boeuf (pianist/composer).
 The brothers were born on August 3, 1986 in Santa Cruz, California.
 Le Boeuf Brothers are part of a growing New York jazz scene characterized by odd time signatures, shifting harmonies, and the influences of hip hop, electronica, and indie rock.
 As a jazz group, they have released four albums.
Stephen and Timothy Quay ( ; born June 17, 1947) are American identical twin brothers better known as the Brothers Quay or Quay Brothers.
 They are influential stop-motion animators.
 They are also the recipients of the 1998 Drama Desk Award for Outstanding Set Design for their work on the play "The Chairs".
The Proclaimers are a Scottish band composed of the identical twin brothers Charlie and Craig Reid (born 5 March 1962).
 They are best known for their songs "I'm Gonna Be (500 Miles)", "Sunshine on Leith", "I'm On My Way" and "Letter from America", and their singing style with a Scottish accent.
 The band tours extensively throughout the world.
 They have released ten studio albums since 1987 as well as three compilation albums and a DVD.
Howe & Howe Tech is a reality television series produced by Authentic Entertainment for the Discovery Channel.
 It documents the day-to-day activities of identical twin brothers Michael "Mike" and Geoffrey "Geoff" Howe, who operate a small business out of Waterboro, Maine called Howe & Howe Technologies.
 The first season aired from January 5 to February 9, 2010, while the second season, having the title Black Ops Brothers: Howe & Howe Tech, had its run from December 13 in the same year up to February 2, 2011.
 The show's title is shorthand for the company name.
Abigail Pogrebin (born May 17, 1965) is an American writer.
 She is the author of "My Jewish Year: 18 Holidays, One Wondering Jew," published in 2017, and the 2005 book "."
 Her second book, "One and the Same: My Life As an Identical Twin and What I’ve Learned About Everyone’s Struggle to Be Singular", was published in October 2009.
 Her bestselling Amazon Kindle Single, "Showstopper", recounts her teenage adventure in the original Broadway cast of Stephen Sondheim’s flop, "Merrily We Roll Along".
 Formerly a producer for Charlie Rose at PBS and Mike Wallace at 60 Minutes, she moderates her own interview series at the JCC in Manhattan and has been President of Central Synagogue from 2015 to present (her tenure ends in 2018).
 She is a daughter of Letty Cottin Pogrebin, the co-founder of Ms. Magazine, and Bert Pogrebin, a management-side labor lawyer, and is the identical twin sister of Robin Pogrebin.
Property Brothers is a Canadian reality television series produced by Cineflix, and is the original show in the "Property Brothers" franchise.
 It airs on W Network in Canada and HGTV in the United States.
 The series features identical twin brothers Jonathan and Drew Scott.
 Drew is a real estate expert who scouts neglected houses and negotiates their purchases.
 His brother, Jonathan, is a licensed contractor who renovates houses.
 Together, the Property Brothers help families find, buy, and transform fixer-uppers into dream homes on a strict timeline and budget.

Question: In what year was "Sunshine on Leith" released by the band composed of identical twin brothers Charlie and Craig Reid?
Answer: 1988