Question: Wonka Bar is from the novel written by this british novelist born in what year?

full_context: Document 1: Willy Wonka &amp; the Chocolate Factory: Willy Wonka & the Chocolate Factory is a 1971 American musical fantasy film directed by Mel Stuart, and starring Gene Wilder as Willy Wonka. It is an adaptation of the 1964 novel "Charlie and the Chocolate Factory" by Roald Dahl. Dahl was credited with writing the film's screenplay; however, David Seltzer, who went uncredited in the film, was brought in to re-work Dahl's screenplay against his wishes, making major changes to the ending and adding musical numbers. These changes and other decisions made by the director led Dahl to disown the film.
Document 2: Wonka Bar: The Wonka Bar is both a fictional candy bar, introduced as a key story point in the 1964 novel "Charlie and the Chocolate Factory" by Roald Dahl, and a type of consumer product candy bar inspired by the fictional confection. Wonka Bars appear in both film adaptations of the novel, "Willy Wonka & the Chocolate Factory" (1971) and "Charlie and the Chocolate Factory" (2005), and the play "Charlie and the Chocolate Factory the Musical" (2013) each with different packaging.
Document 3: Roald Dahl short stories bibliography: Roald Dahl short stories bibliography is a comprehensive annotated list of short stories written by Roald Dahl.
Document 4: Tales of the Unexpected (short story collection): Roald Dahl's Tales of the Unexpected is a collection of sixteen short stories written by British author Roald Dahl and first published in 1979. All of the stories were earlier published in various magazines, and then in the collections "Someone Like You" and "Kiss Kiss".
Document 5: ZERO bar: The ZERO candy bar, introduced in 1920, is a candy bar composed of a combination of caramel, peanut and almond nougat covered with a layer of white fudge (a.k.a. white chocolate fudge). Its outwardly white color, an unusual color for a candy bar, has become its trademark.
Document 6: The Willy Wonka Candy Company: The Willy Wonka Candy Company is a British brand of confectionery owned and licensed by Swiss corporation Nestlé. The Wonka brand's inception comes from materials licensed from British author Roald Dahl. His classic children's novel, "Charlie and the Chocolate Factory", and its film adaptations are the source of both the packaging and the marketing styles of the Wonka brand. The brand was launched in 1971, coinciding with the release of the novel's first film adaptation. In 1988 the Willy Wonka Candy Company brand – then owned by Sunmark Corporation – was acquired by Nestlé. Nestlé sells sweets and chocolate under the Willy Wonka brand name in the United States, Canada, the United Kingdom, the Republic of Ireland, Australia, New Zealand, Japan, South Africa, Mexico, Colombia, Brazil, Argentina, Costa Rica, Panama, Dominican Republic and the Middle East. In mid-2015 the Willy Wonka brand name was dropped by Nestlé, in favour of special "throwback" packaging. Candies previously made by the Willy Wonka brand are now under the Nestlé brand naming, excluding the Wonka brand name on the top left corner.
Document 7: The Candy Man: "The Candy Man" (or alternatively, "The Candy Man Can") is a song which originally appeared in the 1971 film "Willy Wonka & the Chocolate Factory". It was written by Leslie Bricusse and Anthony Newley specifically for the film. Although the original book by Roald Dahl ("Charlie and the Chocolate Factory") contains lyrics adapted for other songs in the film, the lyrics to "The Candy Man" do not appear in the book. The soundtrack version of the song was sung by Aubrey Woods, who played Bill the candy store owner in the film.
Document 8: Golly Bar: Originally launched in 1957 by HB Ice Cream (HB), the Golly Bar is an ice cream formerly sold exclusively in The Republic of Ireland. It was a single rectangular block of vanilla ice cream on a wooden stick. The packaging of Golly Bars depicted an image of a Golliwog, a 19th-century caricature of a blackface minstrel. The Golliwog image was removed from the ice creams packaging in 1992. However, continued concern over any references to the image saw a name change to the Giant Bar. Giant Bars remain available for purchase across The Republic of Ireland though reorganisation of the HB brand by corporate parent Unilever saw the production and ownership of the Giant Bar Brand move to UK company Dale Farm.
Document 9: Roald Dahl's Willy Wonka (musical): Roald Dahl's Willy Wonka is a musical that combines elements of both Roald Dahl's book "Charlie and the Chocolate Factory" and of the 1971 movie "Willy Wonka & the Chocolate Factory" with newly created material. The musical has several versions: the original version which premiered in 2004, the Junior version, the Kids version, and the Theatre for Young Audiences version. All are owned by Music Theatre International, the company that owns the Willy Wonka license.
Document 10: Charlie and the Chocolate Factory (film): Charlie and the Chocolate Factory is a 2005 musical fantasy film directed by Tim Burton and written by John August, based on the 1964 British novel of the same name by Roald Dahl. The film stars Johnny Depp as Willy Wonka and Freddie Highmore as Charlie Bucket. The storyline follows Charlie, who wins a contest and is along with four other contest winners, subsequently led by Wonka on a tour of his chocolate factory, the most magnificent in the world.
Document 11: Roald Dahl: Roald Dahl ( , ] ; 13 September 1916 – 23 November 1990) was a British novelist, short story writer, poet, screenwriter, and fighter pilot. His books have sold more than 250 million copies worldwide.
Document 12: Roald Dahl: Collected Stories: Roald Dahl: Collected Stories is a hardcover edition of short-stories by Roald Dahl for adults. It was published in the US in October 2006 by Random House as part of the Everyman Library. The present volume includes for the first time all the stories in chronological order as established by Dahl's biographer, Jeremy Treglown, in consultation with the Dahl estate. A few of the short stories were not published chronologically in book form, but appeared later, collected in "More Tales of the Unexpected" (1980). The collection contains all of the short stories published in the following collections:
Document 13: List of prolific writers: Some writers have had prolific careers with hundreds of their works being published. While some best-selling authors have written a small number of books that have sold millions of copies, others have had lengthy careers and maintained a high level of output year after year. Dame Agatha Christie, the most-published novelist in history, is estimated to have sold 4 billion books, having written 69 novels and 19 plays. Her works were published between 1920 and 1976, equating to around three publications every two years. Dame Barbara Cartland has also sold millions of copies of her books but wrote many more than Christie. She spent 80 years as a novelist with 722 books published, averaging one book released every 40 days of her career. While Cartland wrote a significant number of full-length novels, other authors have been published many more times but have specialised in short stories. Spanish author Corín Tellado wrote over 5,000 novellas, selling 400 million copies of her books.
Document 14: The Roald Dahl Treasury: The Roald Dahl Treasury is an anthology of works of the children's author Roald Dahl. It was first published in the United Kingdom in 1997 by Puffin Books.
Document 15: The Best of Roald Dahl: The Best of Roald Dahl is a collection of 25 of Roald Dahl's short stories. The first edition was published in 1978.
ground_truth: 1916