Question: when was the book by J.R.R. Tolkien that Bilbo Baggins is the title character and protagonist originally published?
Sentence (from "Bilbo Baggins"): Bilbo Baggins is the title character and protagonist of J. R. R. Tolkien's 1937 novel "The Hobbit", as well as a supporting character in "The Lord of the Rings".
Relevant evidence: Yes