Der Ring des Nibelungen translated commonly into English as The Ring of the Nibelung or The Nibelung's Ring, is a series of four epic operas. Both the libretto and the music were written by Richard Wagner over the course of twenty-six years, from 1848 to 1874.
The four operas in the Ring cycle are:
* Das Rheingold (The Rhinegold)
* Die Walküre (The Valkyrie)
* Götterdämmerung (Twilight of the Gods)