Among so much bliss and tainted souls, Tolkien Elves gave impulses and passions. This is the case of Feanor, the most among all high and mighty, creator of the Silmarils. These jewels were able to maintain inside the light of life, and are so beautiful that even the Valar the revered and appreciated. As many already know the War of the Silmarils is the backbone of the Silmarillion, and while it is true that some of the divisions between Los Eldari occur earlier, which ultimately differentiates some other elves are your decisions, and the position who adopt around the Silmarils. Morgoth dreams of bringing ruin where there is beauty, and aided by Ungoliant get cause unprecedented damage, bringing ruin and pain to Valinor, but not without paying a high price. Poison the trees, withered roots and putting out his light. Silmarils only have the power to bring back the lost beauty, and so he does know Yavanna to Feanor.
But behold, Feanor refuses to break the creation of his life. However, the refusal of Feanor seems less important when Morgoth (then known as Melkor) steals the Silmarils. Feanor is judged, and in his arrogance ignores the command word and the great powers and chooses exile, taking with it many elves. He was a prince among the Noldor. But even though he had many followers, not everyone thought would be king. Most Fingolfin more loved and accepted exile only because Fingolfin had decided to go along with Feanor. Not everyone left at once, however, and the hosts of the Noldor were divided into two: Feanor advanced forefront, along with his sons and his army, driven by the fire of revenge burning in their hearts.