Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College, Oxford, from 1925 to 1945 and Merton Professor of English Language and Literature there from 1945 to 1959. He was a close friend of C. S. Lewis—they were both 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After his death, Tolkien's son Christopher published a series of works based on his father's extensive notes and unpublished manuscripts, including The Silmarillion.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 larger part of these writings