J. R. R. Tolkien members of the informal literary discussion group known as the Inklings. Tolkien was appointed a Commander of the Order of the British Empire by Queen Elizabeth II on 28 March 1972. After Tolkien's death, his son Christopher published a series of works based on his father's extensive notes and unpublished manuscripts, including "The Silmarillion". These, together with "The Hobbit" and "The Lord of the Rings", form a connected body of tales, poems, fictional histories, invented languages, and literary essays about a fantasy world called Arda and Middle-earth within it. Between 1951 and 1955, Tolkien applied the term "legendarium" to the
Languages constructed by J. R. R. Tolkien in the "History of Middle-earth" series, and the "Vinyar Tengwar" and "Parma Eldalamberon" material published at an increasing rate during the early 2000s from the stock of linguistic material in the possession of the appointed team of editors (some 3000 pages according to them), the subject of Tolkien's constructed languages has become much more accessible. David Salo wrote "A Gateway to Sindarin: A Grammar of an Elvish Language from J. R. R. Tolkien's Lord of the Rings" (University of Utah Press, 2007). Elizabeth Solopova, "Languages, Myth and History: An Introduction to the Linguistic and Literary Background of J. R. R.