In the late 1970s the genre social science fiction (Polish: "fantastyka socjologiczna") arose in the People's Republic of Poland. At these times it focused on the development of societies dominated by totalitarian governments. The genre is dominated by Janusz A. Zajdel ("Limes Inferior", "Paradyzja"), Edmund Wnuk-Lipiński ("Apostezjon" trilogy), Adam Wiśniewski-Snerg and Marek Oramus. Some works by Stanisław Lem can also be classified within this genre. The fantastical settings of books of this genre were usually only a pretext for analysing the structure of Polish society, and were always full of allusions to reality.