Flora Tristán's work, which lies somewhere between utopian and scientific socialism, is a surprising milestone in socialist and feminist literature. Four years ahead of the ideas expressed by Marx in the Communist Manifesto, and whose merits were recognized by Karl Marx and Friedrich Engels in The Holy Family, lays the foundations for a scientific feminism within an original conception of human emancipation. For her, the emancipation of the working class is inextricably linked to that of women, who are measured by the social thermometer of emancipation. Flora Tristán's tragic destiny stands as a paradigm of the condition and personal and social history of every woman.