Twenty Thousand Leagues Under the Sea of the premiere adventure novels and one of Verne's greatest works, along with "Around the World in Eighty Days" and "Journey to the Center of the Earth". The description of Nemo's ship, the "Nautilus", was considered ahead of its time, as it accurately describes features on submarines, which at the time were very primitive vessels. A model of the French submarine "Plongeur" (launched in 1863) was displayed at the 1867 Exposition Universelle, where it was studied by Jules Verne, who used it as an inspiration for the novel. The title refers to the "distance traveled" while under the sea and
Twenty Thousand Leagues Under the Sea the book from the initial concept is a portrait of Tadeusz Kościuszko, a Polish national hero, leader of the uprising against Russia in 1794, with an inscription in Latin: "Finis Poloniae!" ("The end of Poland!"). Margaret Drabble argues that "Twenty Thousand Leagues Under the Sea" anticipated the ecology movement and shaped the French avant-garde. Theodore L. Thomas in 1961 said that "there is not a single bit of valid speculation" in the novel and that "none of its predictions has come true". He described the depictions of the diving gear, scenes, and the "Nautilus" as "pretty bad, behind the times