A few years after publishing The Lord of the Rings, in a note associated with the unique narrative story Athrabeth Finrod ah Andreth (which is said to occur in Beleriand during the War of the Jewels), Tolkien equated Arda with the Solar System; because Arda by this point consisted of more than one heavenly body (Valinor being on another planet and the Sun and Moon being celestial objects in their own right and not objects orbiting the Earth).