Transnational feminism
In the "Oxford Handbook of Transnational Feminist Movements", Valentine Moghadam says that "women have worked together across borders since at least the mid-1800s. (55)" What is now called first wave feminism started in the early twentieth century in the West with a focus on women's suffrage. 
During World War II, the United States government gave women jobs because the war had caused a national shortage of labor. After the war ended, Irene Tinker says (oxford transnational), these jobs were taken away but women were no longer satisfied going back to their previous gender roles. Starting in the 1960s in the United States, second wave feminism emerged, defined by women's organization around "equal right to education, employment, and equal pay for equal work, and on sexual and reproductive rights."
Feminism
French philosopher Simone de Beauvoir provided a Marxist solution and an existentialist view on many of the questions of feminism with the publication of "Le Deuxième Sexe" ("The Second Sex") in 1949. The book expressed feminists' sense of injustice. Second-wave feminism is a feminist movement beginning in the early 1960s and continuing to the present; as such, it coexists with third-wave feminism. Second-wave feminism is largely concerned with issues of equality beyond suffrage, such as ending gender discrimination.