Twenty Thousand Leagues Under the Sea as an inhabitant of British Colonial India, "is an inhabitant of an oppressed country". Verne took the name "Nautilus" from one of the earliest successful submarines, built in 1800 by Robert Fulton, who later invented the first commercially successful steamboat. Fulton's submarine was named after the paper nautilus because it had a sail. Three years before writing his novel, Jules Verne also studied a model of the newly developed French Navy submarine "Plongeur" at the 1867 Exposition Universelle, which inspired him for his definition of the "Nautilus". The breathing apparatus used by "Nautilus" divers is depicted as an untethered version
20,000 Leagues Under the Sea (1954 film) which Douglas had sung in the movie "Man Without a Star" (written by Lou Singer and Jimmy Kennedy), was the B-side. Both songs can be found on the 2008 digital release of the film's soundtrack. In the film, Johann Sebastian Bach's "Toccata and Fugue in D minor" is played by Nemo on the Nautilus's organ, but James Mason's playing is actually dubbed by an anonymous organist. On January 29, 2008, Walt Disney Records released a 26-track digital album containing the music of Paul Smith's original soundtrack score to "20,000 Leagues Under the Sea" plus both sides of the "A Whale