Middle-earth is the setting of much of J. R. R. Tolkien's legendarium.The term is equivalent to the term Midgard of Norse mythology, describing the human-inhabited world, i.e. the central continent of the Earth in Tolkien's imagined mythological past.Tolkien's most widely read works, The Hobbit and The Lord of the Rings, take place entirely in Middle-earth, and Middle-earth has also become a short-hand to refer to the legendarium or its "fictional universe".