Three rings for the Elven kings under the sky
Seven for the Dwarf lords in their halls of stone
Nine for the mortal men doomed to die
One for the dark lord on his dark throne
One ring to rule them all, one ring to find them, and in the darkness bind them!
In the land of Mordor where shadows lie.
The One Ring was forged by the dark lord Sauron to rule all of middle earth.
Names of the three Elven rings:
Nenya was given to Galadriel
Narya to Cirdan. Later given to Gandalf.
Vilya given to Gil-Galad. Later he gave it to Elrond.