The Firstborn of all peoples, all elves are immortal and do not age as humans do, though in times of war they may still be killed. Many of the High Elves, the elves who lived in Valinor in the First Age, long to return to the home they left behind, but feel it is their duty to remain in Middle-earth to protect its realms and peoples.
THE SECOND AGE
The Second Age began after the downfall of Morgoth, the original Dark Lord. The early part of the Second Age is a time of relative peace, allowing kingdoms of elves, dwarves, and men to grow and flourish as the wars of the First Age become a distant memory.