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) film's script without the usage of any of the film's cast for character voices. In addition, both albums were narrated by Ned Land as opposed to Aronnax, who narrated the film and the original novel. Neither album mentioned Nemo as actually being "cracked" (i.e. insane), as the film does, and considerably sanitized the character by omitting any mention of him killing anyone and even having him sing sea chanties with his crew. The albums also had Nemo surviving at the end and releasing Ned, Arronax, and Conseil out of gratitude for their saving his life. In this version, Ned, Aronnax