Simone de Beauvoir's 'The Second Sex' Launched Modern Feminism in 1949
In 1949, French philosopher Simone de Beauvoir published 'The Second Sex' (Le Deuxième Sexe), a landmark work of feminist philosophy that argued women are not born inferior but are made so by society. Her famous opening phrase — 'One is not born, but rather becomes, a woman' — challenged the idea that femininity is natural or inevitable. The book sold 22,000 copies in its first week, was banned by the Vatican, and became a foundational text of second-wave feminism worldwide.