# The Nature of Middle-earth
## Part I: The Foundations of Middle-earth
- The Creation of Middle-earth
- The Music of the Ainur
- The Vision of Eru Ilúvatar
- The Formation of Arda
- The Nature of Time and Space
- The Great Years and Ages
- The Concept of Linear Time
- The Measurement of Days and Seasons
- The Physical Laws of Middle-earth
- The Nature of Light and Darkness
- The Role of Valar in Shaping the World
- The Influence of Melkor's Corruption
## Part II: The Races of Middle-earth
- The Origins of Elves
- The Awakening at Cuiviénen
- The Three Kindreds of Elves
- The Journey to Valinor
- The Origins of Men
- The First Awakening of Men
- The Gift of Mortality
- The Division of the Edain
- The Dwarves and Other Beings
- The Creation of the Dwarves by Aulë
- The Ents and the Shepherds of the Trees
- The Spirits of Middle-earth (Maiar, Valar)
## Part III: The Geography and Cosmology of Middle-earth
- The Structure of Arda
- The Two Lamps and the Two Trees
- The Shaping of the Seas and Continents
- The Changing of the World
- The Major Regions of Middle-earth
- Beleriand and its Destruction
- The Lands of the West (Númenor)
- The Later Realms (Gondor, Arnor, Rohan)
- The Heavens and the Stars
- Varda and the Star-kindlers
- The Significance of the Stars in Elven Lore
- The Movement of Celestial Bodies
## Part IV: The Themes of Power and Corruption
- The Rings of Power
- The Forging of the Rings
- The One Ring and its Influence
- The Downfall of Sauron
- The Nature of Evil in Middle-earth
- The Corruption of Melkor/Morgoth
- The Spread of Darkness through Deceit
- The Resistance of Free Peoples
- The Balance of Good and Evil
- The Role of Fate and Free Will
- The Struggle for Dominion over Middle-earth
- The Ultimate Triumph of Good
## Part V: The Legacy of Middle-earth
- The End of the Third Age
- The Departure of the Elves
- The Decline of Magic
- The Rise of Men as the Dominant Race
- The Undying Lands
- The Journey to Valinor
- The Separation of Arda from the Mortal World
- The Eternal Peace of the Blessed Realm
- The Mythological Reflections
- Tolkien's Inspiration from Norse and Celtic Myths
- The Christian Undertones in Middle-earth
- The Enduring Appeal of Middle-earth in Modern Culture