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
Twenty Thousand Leagues Under the Sea Prince Dakkar), it is muddied by the presence of several irreconcilable chronological contradictions between the two books and even within "The Mysterious Island." Verne returned to the theme of an outlaw submarine captain in his much later "Facing the Flag". That book's main villain, Ker Karraje, is a completely unscrupulous pirate acting purely and simply for gain, completely devoid of all the saving graces which gave Nemo—for all that he, too, was capable of ruthless killings—some nobility of character. Like Nemo, Ker Karraje plays "host" to unwilling French guests—but unlike Nemo, who manages to elude all pursuers, Karraje's career of