Eye of Sauron

The Eye of Sauron, or Great Eye, was a symbol adopted by the Dark Lord in the Third Age. It was said that few could endure its terrible gaze. The Eye was used as a symbol on armor and banners of Mordor, representing Sauron's quasi-omnipotence.
With it, Sauron searched for and tracked the paths of the Ring-bearer Frodo Baggins at the end of the Third Age.
== History ==
It is unknown when the Eye of Sauron was formed. At the apex of Barad-dûr, the Eye was a flaming, visible, though perhaps not tangible presence during the events of The Lord of the Rings, made clear when it appeared through a window when clouds parted in Mordor.