Les Rougon-Macquart [le ʁu.ɡɔ̃ ma.kaʁ] is the collective title given to a cycle of twenty novels by French writer Émile Zola. Subtitled Histoire naturelle et sociale d'une famille sous le Second Empire (Natural and social history of a family under the Second Empire), it follows the lives of the members of the two titular branches of a fictional family living during the Second French Empire (1852–1870) and is one of the most prominent works of the French naturalism literary movement.