Question: Who forged the ring in lord of the rings?

Disambiguated questions and answers:
context: The One Ring was forged by the Dark Lord Sauron during the Second Age to gain dominion over the free peoples of Middle-earth. In disguise as "Annatar", or "Lord of Gifts", he aided the Elven smiths of Eregion and their leader Celebrimbor in the making of the Rings of Power. He then forged the One Ring himself in the fires of Mount Doom.
question: Who forged the One ring in The Lord of the Rings?
short_answers: Sauron
wikipage: One Ring

context: After its original forging (about ) Sauron waged the War of the Elves and Sauron against the Elves and all who opposed him. Sauron invaded and destroyed Eregion, and killed Celebrimbor, the maker of the three rings of the Elves. However, King Tar-Minastir of Númenor sent a great fleet to Middle-earth, and with this aid Gil-galad destroyed Sauron's army and forced Sauron to return to Mordor.
question: Who forged the three rings for the Elves in the Lord of the Rings?
short_answers: Celebrimbor
wikipage: One Ring

context: No context provided
question: Who forged the nine rings for men and the seven rings for the Dwarves in the Lord of the Rings?
short_answers: Celebrimbor and Gwaith-i-Mírdain

Celebrimbor and Elven Smiths

context: The forging of the Rings of Power opens the prologue of Peter Jackson's "The Lord of the Rings" film series, primarily with "" (2001). In the film, the Three Elven Rings are shown being cast using a cuttlebone mold, an ancient primitive casting technique. These were given to Gil-galad (portrayed by Mark Ferguson), Círdan (Michael Elsworth), and Galadriel (Cate Blanchett). Tolkien illustrator Alan Lee, employed as conceptual designers for the films, had a cameo as one of the nine human Ring-bearers who would later become the Nazgûl, while Sauron (Sala Baker) is seen forging the One Ring at the chamber of Mount Doom. The One Ring was also shown to have the ability to adjust in size to the finger of its wearer, such as when it became smaller to fit Isildur (Harry Sinclair). In the extended version of the film, Galadriel also properly introduces Nenya, the Ring of Adamant, to Frodo. In the concluding sequel, "" (2003), the final wearers of the Three Rings—Gandalf (Ian McKellen), Elrond (Hugo Weaving), and Galadriel, were revealed at the Grey Havens wearing the Three, with Galadriel proclaiming the end of its power and the beginning of the Dominion of Men.
question: Who played the character that forged the one ring in the lord of the rings trilogy?
short_answers: Sala Baker and Alan Howard

Sala Baker

Alan Howard
wikipage: Rings of Power

Long answers:
knowledge: content: The Rings of Power were forged by the Elven-smiths of the Noldorin settlement of Eregion
wikipage: Rings of Power

content: The smiths were led by Celebrimbor, the grandson of Fëanor, the greatest craftsman of the Noldor, working with Dwarves from Khazad-dûm (Moria) led by his friend Narvi.
wikipage: Rings of Power
long_answer: The One ring in The Lord of the Rings was forged by the Dark Lord Sauron, played by Sala Baker and Alan Howard in the films. The three rings for the Elves, the nine rings for men and the seven rings for the Dwarves was forged by Celebrimbor and Elven Smiths.

knowledge: content: The One Ring, also called the Ruling Ring and Isildur's Bane, is a central plot element in J. R. R. Tolkien's The Lord of the Rings (1954–55).
wikipage: One Ring

content: In disguise as Annatar, or "Lord of Gifts", he aided the Elven smiths of Eregion and their leader Celebrimbor in the making of the Rings of Power.
wikipage: One Ring Purpose
long_answer: The One Ring, also called the Ruling Ring and Isildur's Bane, is a central plot element in J. R. R. Tolkien's The Lord of the Rings. The One Ring was forged by the Dark Lord Sauron during the Second Age to gain dominion over the free peoples of Middle-earth. In disguise as Annatar, or "Lord of Gifts", he aided Celebrimbor and Elven smiths of Eregion in the making of the Rings of Power. Sala Baker and Alan Howard both played Sauron.