Question: Through the Looking-Glass is an 1871 work of children's literature by Lewis Carroll, the sequel to "Alice's Adventures in Wonderland", released in which year?
Context: Through the Looking-Glass, and What Alice Found There (1871) is a novel by Lewis Carroll (Charles Lutwidge Dodgson), the sequel to "Alice's Adventures in Wonderland" (1865).  Set some six months later than the earlier book, Alice again enters a fantastical world, this time by climbing through a mirror into the world that she can see beyond it.  "Through the Looking-Glass" includes such celebrated verses as "Jabberwocky" and "The Walrus and the Carpenter", and the episode involving Tweedledum and Tweedledee.  The mirror which inspired Carroll remains displayed in Charlton Kings. Through the Looking-Glass is an 1871 work of children's literature by Lewis Carroll, the sequel to "Alice's Adventures in Wonderland".  Through the Looking Glass or Thru the Looking Glass may also refer to: Alice's Adventures in Wonderland (commonly shortened to Alice in Wonderland) is an 1865 fantasy novel written by English mathematician Charles Lutwidge Dodgson under the pseudonym Lewis Carroll.  It tells of a girl named "Jabberwocky" is a nonsense poem written by Lewis Carroll about the killing of a creature named "the Jabberwock".  It was included in his 1871 novel "Through the Looking-Glass, and What Alice Found There", the sequel to "Alice's Adventures in Wonderland".  The book tells of Alice's adventures within the back-to-front world of Looking-Glass Land. Alice in Wonderland is an Australian 51-minute direct-to-video animated film from Burbank Films Australia.  It was originally released in 1988.  The film is based on Lewis Carroll's classic English novel, "Alice's Adventures in Wonderland", first published in 1865, and was adapted by Paul Leadon.  Unlike many other adaptations of the novel, this one did not borrow elements from its sequel, "Through the Looking-Glass" (1871), combined into one film.  The production company produced a 73-minute adaptation of the second novel the year before, in 1987, entitled "Alice: Through the Looking-Glass".  The 1988 film was produced by Roz Phillips and directed by Rich Trueblood.  Quite uncommon among Burbank Films Australia's adaptations of classic literary works, "Alice in Wonderland" featured one original theme song, composed by Mark Isaacs.  The copyright in this film is now owned by Pulse Distribution and Entertainment and administered by digital rights management firm NuTech Digital. Alice in Verse: The Lost Rhymes of Wonderland (2010) is a reimagining of Lewis Carroll's "Alice in Wonderland" written by British-American author J.T. Holden.  It tells the story of "Alice's Adventures in Wonderland" (with a "Slight Detour "Through the Looking-Glass"") in 19 rhyming poems, each written in the same style as Lewis Carroll's original verse.  The book includes 36 illustrations by American artist Andrew Johnson. The Looking Glass Wars is a series of novels by Frank Beddor, heavily inspired by Lewis Carroll's "Alice's Adventures in Wonderland" and "Through the Looking-Glass".  The basic premise is that the two books written by Lewis Carroll are a distortion of the 'true story' portrayed in these novels.  It features twists and turns on the original story, such as the white rabbit really being Alyss's (Alice's) tutor, Bibwit Harte, and the Mad Hatter is really a very agile, somber bodyguard called Hatter Madigan. Wonderland: A New Alice, formerly called Wonderland: Alice's New Musical Adventure, is a musical with a book by Jack Murphy and Gregory Boyd, lyrics by Murphy, and music by Frank Wildhorn.  The story, a contemporary version of "Alice's Adventures in Wonderland" and "Through the Looking-Glass" by Lewis Carroll, is set in New York City and focuses on writer Alice Cornwinkle and her 10-year-old daughter Chloe. Alice is a fictional character and protagonist of Lewis Carroll's children's novel "Alice's Adventures in Wonderland" (1865) and its sequel, "Through the Looking-Glass" (1871).  A child in the mid-Victorian era, Alice unintentionally goes on an underground adventure after accidentally falling down a rabbit hole into Wonderland; in the sequel, she steps through a mirror into an alternative world. The Hatter is a fictional character in Lewis Carroll's "Alice's Adventures in Wonderland" and its sequel "Through the Looking-Glass".  He is often referred to as the Mad Hatter, though this term was never used by Carroll.  The phrase "mad as a hatter" pre-dates Carroll's works.  The Hatter and the March Hare are referred to as "both "mad"" by the Cheshire Cat, in "Alice's Adventures in Wonderland" in the seventh chapter titled "A Mad Tea-Party".
Answer: 1865