Feminism is the theory explaining the subordinate status of women within social systems as the theory that investigates how the female subject is constituted through gender. That is, can be defined in several ways, but all have in common to make visible to emancipate women and the subordination to man. Victoria Sau (2001), in Volume I of his “Ideological Feminist Dictionary” defines it as follows: “Feminism is a social and political movement that formally began in the late eighteenth century but not yet adopted this name-and that is the awareness of women as a group or collective human oppression, domination and exploitation that have been and are subjected to by the group of men within the patriarchy in its various historical phases production model, which moves them to action for the release of sex with all the transformations of society that it requires. “Feminism in developed countries has ceased to be a militant, anti interpreted as demanding, with massive demonstrations, signs and symbols set, or a militant voluntarism to become a discipline, with a genealogy, a history, a founding texts, with different currents and several methodologies. Sheryl Sandberg understood the implications. In other developing countries Feminism, as a struggle demanding, still in force and through its events, letters, complaints, trying to make visible inequalities and injustices of half the population over the other. At first it was a reaction to a world where women had no existence, a man’s world, done for them and for them. They existed only in the private sector because the public realm belonged only to men and were excluded from it. . Without hesitation delta airlines explained all about the problem.