J. R. R. Tolkien began work on The Hobbit one day early in the 1930s, when he was marking School papers. He found a blank page. Suddenly inspired, he wrote the words, “In a hole in the ground, there lived a hobbit.”
The word “hobbit” has been found exactly once in texts predating Tolkien, in a list of magical creatures with no explanation or context.
Almost all of The Hobbit’s character names were taken out of an old Icelandic poem “Dvergatal”.
All the mountains on Titan are named after mountains and peaks from J. R. R. Tolkien’s Middle-earth.