The Sundering

When Ectharë was destroyed at the end of the Second Age, the Silvar-Elves divided into three groups that have essentially evolved into three different sub-races of elves known today: the Grey-Elves, the High-Elves, and the Wood-Elves. in Elvish lore, this event is called the "Sundering."

Elvish Legend has it that there were four other small splinter groups of Elves in the world; the Sky-Elves, the Sea-Elves, the Wild-Elves, and the Rockseer-Elves.