They reached Tierra del Fuego on 18 December 1832, and Darwin was taken by surprise at what he perceived as the crude savagery of the Yaghan natives, in stark contrast to the "civilised" behaviour of the three Fuegians they were returning as missionaries (who had been given the names York Minster, Fuegia Basket and Jemmy Button). He described his first meeting with the native Fuegians as being "without exception the most curious and interesting spectacle I ever beheld: I could not have believed how wide was the difference between savage and civilised man: it is greater than between a wild and domesticated animal, inasmuch as in man there is a greater power of improvement." They appeared like "the representations of Devils on the Stage" as in "Der Freischütz". In contrast, he said of Jemmy that "It seems yet wonderful to me, when I think over all his many good qualities, that he should have been of the same race, and doubtless partaken of the same character, with the miserable, degraded savages whom we first met here." (Four decades later, he recalled these impressions in "The Descent of Man" to support his argument that just as humans had descended from "a lower form", civilised society had arisen by graduations from a more primitive state. He recalled how closely the Fuegians on board "Beagle" "resembled us in disposition and in most of our mental faculties.")