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
Jules Verne magazine. (The manuscript, believed lost for some time after Verne's death, was finally published in 1994.) The relationship between publisher and writer changed significantly around 1869, when Verne and Hetzel were brought into conflict over the manuscript for "Twenty Thousand Leagues Under the Sea". Verne had initially conceived of the submariner Captain Nemo as a Polish scientist whose acts of vengeance were directed against the Russians who had killed his family during the January uprising. Hetzel, not wanting to alienate the lucrative Russian market for Verne's books, demanded that Nemo be made an enemy of the slave trade, a situation