Carry On: The Rise and Fall of Simon Snow is the third young adult novel written by Rainbow Rowell, published in 2015.
 The story follows the final year of magical schooling for Simon Snow, the "Chosen One" of the magical world prophesied to defeat the Insidious Humdrum, an evil force that has been wreaking havoc on the World of Mages for years.
 The novel is told through several narrative voices, including that of Simon, his roommate/enemy and later boyfriend Baz, his best friend Penelope, and his erstwhile girlfriend Agatha.
Young adult fiction or young adult literature (YA) is fiction published for readers in their youth.
 The age range for young adult fiction is subjective.
 Some sources claim it ranges from ages 12–18, while authors and readers of "young teen novels" often define it as written for those aged 15 to the early 20s.
 The terms young adult novel, juvenile novel, teenage fiction, young adult book, etc., refer to the works in this category.
Rainbow Rowell (born February 24, 1973) is an American author of young adult and adult contemporary novels.
 Her young adult novels "Eleanor & Park" (2013), "Fangirl" (2013) and "Carry On" (2015) have been subjects of critical acclaim.
Sarah Wylie (born 1989) is a Canadian writer of young adult novels.
 Her first novel, "All These Lives", was published in 2012.
 Her next novel, another stand-alone contemporary young adult novel, will be published in 2014.
Maureen Daly (March 15, 1921 – September 25, 2006), was an Irish-born American writer best known for her 1942 novel "Seventeenth Summer", which she wrote while still in her teens.
 Originally published for adults, it described a contemporary teenage romance and drew a large teenage audience.
 It is regarded by some as the first young adult novel, although the concept of young adult literature was not developed until the 1960s, more than twenty years later.
 At age 16, Daly also wrote an award-winning short story, "Sixteen", that appeared in many anthologies.
Skink - No Surrender is a young adult novel by Carl Hiaasen, published on September 23, 2014.
 It is described as Hiaasen's first young adult novel.
 He has authored four previous novels for "young" readers.
 Like all of his novels, it is set in Hiaasen's native Florida.
Landline is a 2014 American sci-fi novel by Rainbow Rowell.
 It tells the story of 37 year old Georgie McCool who discovers that she is able to call her husband's 22 year old self through his landline.
 Rowell stated that aspects from the novel are loosely based on her own life such as the fact that Georgie is incredibly career-driven while her husband is a stay-at-home dad.
 The character of Georgie McCool was named after the song Georgy Girl and the village of McCool Junction.
Gallows Hill (1997) is a supernatural thriller novel for young adults by Lois Duncan.
 It was her first and only young adult novel written after the death of her daughter.
 It was written eight years after her previous young adult novel, "Don't Look Behind You".
 It is about a girl who moves to a small town with a secret.
Eleanor & Park is the first young adult novel written by Rainbow Rowell, published in 2013.
 The story follows dual narratives by Eleanor and Park, two misfits living in Omaha, Nebraska from 1986 to 1987.
 Eleanor, a full-figured, 16-year-old girl with curly red hair, and Park, a half-Korean, 16-year-old boy, meet on a school bus on Eleanor's first day at the school and gradually connect through comic books and mix tapes of '80s music, sparking a love story.
Fangirl is a 2013 contemporary young adult novel written by Rainbow Rowell.
 "Fangirl's" publication follows Rowell's previous young adult novel published earlier in 2013, "Eleanor & Park".

Question: Fangirl is a 2013 contemporary young adult novel written by Rainbow Rowell, Fangirl's" publication follows Rowell's previous young adult novel published earlier in what year, "Eleanor & Park",the first young adult novel written by Rainbow Rowell? 
Answer: 2013