has it been translated?
Yes, like the Swedish translation by Åke Ohlmarks.
The Lord of the Rings
The work has been translated, with varying degrees of success, into at least 38, and reportedly at least 70, languages. Tolkien, an expert in philology, 
where is sauron during the lord of the rings UNANSWERABLE is this a character or a place? He is the title character of "The Lord of the Rings". is he a character from a book or a movie? From the novel by J. R. R. Tolkien. is it a series? It has been adapted for film, radio, stage, and television. does it include poems? Unusually for 20th century novels, the prose narrative is supplemented throughout by over 60 pieces of poetry.
wiki:19676172
The Lord of the Rings [SEP] Translations
The work has been translated, with varying degrees of success, into at least 38, and reportedly at least 70, languages. Tolkien, an expert in philology, examined many of these translations, and made comments on each that reflect both the translation process and his work. As he was unhappy with some choices made by early translators, such as the Swedish translation by Åke Ohlmarks, Tolkien wrote a "Guide to the Names in The Lord of the Rings" (1967). Because "The Lord of the Rings" purports to be a translation of the fictitious "Red Book of Westmarch", with the English language representing the Westron of the "original", Tolkien suggested that translators attempt to capture the interplay between English and the invented nomenclature of the English work, and gave several examples along with general guidance.