Question: When were lord of the rings books written?

Disambiguated questions and answers:
context: Persuaded by his publishers, he started "a new Hobbit" in December 1937. After several false starts, the story of the One Ring emerged. The idea for the first chapter ("A Long-Expected Party") arrived fully formed, although the reasons behind Bilbo's disappearance, the significance of the Ring, and the title "The Lord of the Rings" did not arrive until the spring of 1938. Originally, he planned to write a story in which Bilbo had used up all his treasure and was looking for another adventure to gain more; however, he remembered the Ring and its powers and thought that would be a better focus for the new work. As the story progressed, he also brought in elements from "The Silmarillion" mythology.
question: When was lord of the rings books started?
short_answers: December 1937
wikipage: The Lord of the Rings
context: "The Lord of the Rings" started as a sequel to J. R. R. Tolkien's work "The Hobbit," published in 1937. The popularity of "The Hobbit" had led George Allen & Unwin, the publishers, to request a sequel. Tolkien warned them that he wrote quite slowly, and responded with several stories he had already developed. Having rejected his contemporary drafts for "The Silmarillion", putting on hold "Roverandom", and accepting "Farmer Giles of Ham", Allen & Unwin thought more stories about hobbits would be popular. So at the age of 45, Tolkien began writing the story that would become "The Lord of the Rings." The story would not be finished until 12 years later, in 1949, and would not be fully published until 1955, when Tolkien was 63 years old.
question: When was lord of the rings books finished being written?
short_answers: 1949
wikipage: The Lord of the Rings
context: Although generally known to readers as a trilogy, the work was initially intended by Tolkien to be one volume of a two-volume set, the other to be "The Silmarillion", but this idea was dismissed by his publisher. For economic reasons, "The Lord of the Rings" was published in three volumes over the course of a year from 29 July 1954 to 20 October 1955. The three volumes were titled "The Fellowship of the Ring", "The Two Towers" and "The Return of the King". Structurally, the novel is divided internally into six books, two per volume, with several appendices of background material included at the end. Some editions combine the entire work into a single volume. "The Lord of the Rings" has since been reprinted numerous times and translated into 38 languages.
question: When was the fellowship of the ring written and published?
short_answers: 29 July 1954
wikipage: The Lord of the Rings
context: For publication, the book was divided into three volumes to minimize any potential financial loss due to the high cost of type-setting and modest anticipated sales: "The Fellowship of the Ring" (Books I and II), "The Two Towers" (Books III and IV), and "The Return of the King" (Books V and VI plus six appendices). Delays in producing appendices, maps and especially an index led to the volumes being published later than originally hoped – on 29 July 1954, on 11 November 1954 and on 20 October 1955 respectively in the United Kingdom. In the United States, Houghton Mifflin published "The Fellowship of the Ring" on 21 October 1954, "The Two Towers" on 21 April 1955, and "The Return of the King" on 5 January 1956.
question: When was the two towers written and published?
short_answers: 11 November 1954
wikipage: The Lord of the Rings
context: Although generally known to readers as a trilogy, the work was initially intended by Tolkien to be one volume of a two-volume set, the other to be "The Silmarillion", but this idea was dismissed by his publisher. For economic reasons, "The Lord of the Rings" was published in three volumes over the course of a year from 29 July 1954 to 20 October 1955. The three volumes were titled "The Fellowship of the Ring", "The Two Towers" and "The Return of the King". Structurally, the novel is divided internally into six books, two per volume, with several appendices of background material included at the end. Some editions combine the entire work into a single volume. "The Lord of the Rings" has since been reprinted numerous times and translated into 38 languages.
question: When was the return of the King written and published?
short_answers: 20 October 1955
wikipage: The Lord of the Rings

Long-form answers:
knowledge: content: The Lord of the Rings is an epic[1] high-fantasy novel[a] by English author and scholar J. R. R. Tolkien.
wikipage: The Lord of the Rings
long_answer: The Lord of the Rings books were started in December 1937 and finished being written in 1949, and the novel The Lord of the Rings was published in three volumes—The Fellowship of the Ring, The Two Towers, and The Return of the King. The Fellowship of the Ring, The Two Towers, and The Return of the King were published on 29 July 1954, on 11 November 1954, and on 20 October 1955, respectively.