Niels Klim's Underground Travels, aka Niels Klim’s Journey Under the Ground, was originally published in Latin as Nicolai Klimii Iter Subterraneum (1741), and first published in English by Saxton, Peirce & Company of London in 1845. The translator is unknown. The book is a satirical science-fiction/fantasy novel written by -Danish author and playwright LUDVIG HOLBERG. It is book two of the Campbell Hollow Earth series. and it describes a utopian society from an outsider's point of view, and often pokes fun at diverse cultural and social topics such as morality, science, sexual equality, religion, governments, and philosophy. Holberg knew that the satirical content of the novel would cause an uproar in Denmark-Norway, so the book was first published in Germany, in Latin. He thus reached a broader audience than he would have in his homeland. The novel made him widely acclaimed across Europe. Danish, German, French, and Dutch translations were also published in 1741.The book is significant in the history of science fiction, being one of the first science-fiction novels in history.