Giants in the Earth is a novel by Norwegian-American author Ole Edvart Rølvaag. First published in Norwegian as two books in 1924 and 1925, the English edition was translated by the author and Lincoln Colcord, each of whom also wrote prefatory matter. Part of a trilogy, the novel follows a Norwegian pioneer family's struggles with the land and the elements of the Dakota Territory as they try to make a new life in America. The book is based partly on Rølvaag's personal experiences as a settler, and on the experiences of his wife’s family who had been immigrant homesteaders. The novel depicts snow storms, locusts, poverty, hunger, loneliness, homesickness, the difficulty of fitting into a new culture, and the estrangement of immigrant children who grow up in a new land. Giants in the Earth was turned into an opera by Douglas Moore and Arnold Sundgaard; it won the Pulitzer Prize for Music in 1951.