J.R.R. Tolkien’s first published Middle-earth story was The Hobbit.
Published in 1937, The Hobbit introduced readers to Middle-earth through Bilbo Baggins’s journey with Thorin Oakenshield and the dwarves. It also introduced or developed figures and elements later connected to the wider mythology, including Gandalf, Gollum, the dragon Smaug, and the powerful ring Bilbo finds.
Tolkien had created much older mythological material before The Hobbit appeared, including stories later represented in The Silmarillion. However, those legends were not published as a complete book during his lifetime. The Hobbit was the first published narrative that brought his evolving Middle-earth setting to the public.
The Lord of the Rings followed in 1954–1955 and expanded the tone, history, and moral scale of the world. Later posthumous books such as Unfinished Tales and The Children of Húrin drew from Tolkien’s unpublished papers and are not earlier published Middle-earth stories.