Arda
Arda is the Earth, the terrestrial world within Tolkien's legendarium. It is the world within the larger cosmos called Ea, created by Eru Ilúvatar and shaped by the Valar. In early myth, Arda was lighted by two great lamps, Illuin and Ormal; after Melkor's rebellion, the Lamps were removed, and long after the awakening of the Trees in Valinor, the Sun and Moon were given to illuminate Arda.
Geography: Arda comprises Aman, the Blessed Realm, to the west of Middle-earth; Middle-earth itself includes the
History and ages: Arda's history is told across the First Age (when the Elves first awoke and
Etymology and usage: "Arda" comes from Quenya and is used in Tolkien's works to denote the terrestrial