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 After Tolkien's death, his son Christopher published a series of works based on his father's extensive notes and unpublished manuscripts, including "The Silmarillion".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
Works inspired by J. R. R. Tolkien the Ballantine Adult Fantasy series, aimed at adult readers who enjoyed Tolkien's works. Lester Del Rey, however, sought for new books that would mirror Tolkien's work, and published Terry Brooks' "The Sword of Shannara", David Eddings's "Belgariad", and Stephen R. Donaldson's "The Chronicles of Thomas Covenant, the Unbeliever". Guy Gavriel Kay, who had assisted Christopher Tolkien with the editing of "The Silmarillion", later wrote his own Tolkien-influenced fantasy trilogy, "The Fionavar Tapestry". Russian writer Nick Perumov was able to publish several fantasy novels set in Tolkien's Middle-Earth after the events of "The Lord of the Rings" (due to a loophole