Science fiction and fantasy in Poland dates to the late 18th century. During the later years of the People's Republic of Poland, social science fiction was a very popular genre of science fiction. Afterwards, many others gained prominence. Currently there are many . Internationally, the best known Polish science fiction writer is Stanislaw Lem. As elsewhere, Polish science fiction is closely related to the genres of fantasy, horror and others. Although many English language writers have been translated into Polish, relatively little Polish language science fiction (or fantasy) has been translated into English.