It is mainly a literary and narrative genre where an alternate to the real story is described from an event that changes events, a point of historical divergence that for some authors could also create parallel worlds, where both realities coexist in different timelines. This concept was also taken up by philosophy, sociology and even political propaganda. While there were earlier uchronic accounts, it was just baptized with that name by the Nineteenth-century French neo-criticist philosopher Charles Bernard Renouvier in his work Uchronie, l'utopie dans l'Histoire: esquisse historique apocryphe du développement de la civilisation européenne tel quil na pas été , tel quil aurait pu être. ( "Ucronía, utopia in history: apocryphal historical sketch of the development of European civilization as it was not, as it could have been. " ) . It is a neologism created from the well-known "utopia", where instead of describing a "no place" the Greek voices are taken 959; 965; ( óu "no , negation" ) 964; 959; 960; 959; 962; (chronos "time") for a "non-time", such as an epoch that never existed. See counterfactual, jonbar.