Abstract: Studying the theoretical relationships between History and Literature gives us the opportunity to move History in other scopes, both for the theoretical debate that is inserted, and for the opportunity to revisit the past from literary sources. The São Paulo writer Cassandra Rios (1932-2002), known for writing lesbian and erotic novels, was censored during the entire civil-military regime that was in force in Brazil between 1964 and 1985. According to the regime, her works were inadequate for the Brazilian population, as it offended the moral values and good customs that were sought to preserve the Brazilian people. This discourse was not created by the military in power, nor was it restricted to the Brazilian reality reserved for that period. On the contrary, the censorship of sexualities considered deviant gained strength since decades before the coup of 64. And the discourse of preserving the good customs of the population has its roots in the heart of the Cold War, which favored, through anti-communist propaganda, the birth of the relationship between homosexuality, promiscuity and danger to the nation. Based on the readings of Michel de Certeau and Carlos Fico, we brought two letters written by civilians and addressed to the Minister of Justice Armando Falcão, against Cassandra Rios, imbued with these values and discourses that must be read from the point of view of time, but also of the permanence of discourses that are still reproduced.