War of Wrath
Morgoth or Melkor was the first Dark Lord. His name means "he who arises in might". He was the first of the Ainur to be created by Eru Ilúvatar and the one who created discord in the Music of the Ainur. The spiritual brother of Manwë, he was the most powerful of the Valar, as he was the only one who possessed all aspects of Eru's thought. He turned to evil, and was taken back to Valinor in the chain "Angainor" after the Awakening of the Elves in Cuiviénen. He remained on parole in Valinor for three Ages, but after the poisoning of the Two Trees and the theft of the Silmarils, he fled from Valinor. He was no longer counted among the Valar, and Fëanor, one of the leaders of the Noldorin Elves, called him "Morgoth Bauglir", The Great Enemy, and he was known by that in Middle-earth ever after. He was cast out of Arda at the end of the War of Wrath.