Melkor overthrew the lamps, destroying the symmetry of the world and forcing the Valar to move to the western continent of The Years of the Trees:
The story of Arda begins not with the forging of rings, but with a song. In Tolkien’s mythology, detailed primarily in The Silmarillion , the supreme deity Eru Ilúvatar created the Ainur (the Holy Ones). He taught them a great theme, the Music of the Ainur, from which the world was fashioned. Melkor overthrew the lamps, destroying the symmetry of
The history of Arda begins not with geography, but with music. In the Timeless Halls, Ilúvatar revealed a magnificent theme to the Ainur (the "Holy Ones," or angels). This was the —the Music of the Ainur. Melkor overthrew the lamps