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."
Evelyn Fox Keller
She first encountered feminism as a discipline while attending a conference entitled "Women and the Scientific Profession." At this conference, Erik Erikson and Bruno Bettelheim argued for more women in science based on the invaluable contributions a "specifically female genius" could make to science. Four years later, in 1969, she compiled an array of data on the experiences of women scientists and put together an argument about women in (or out of) science, based on "women's nature." She had been feeling disenchantment from her colleague publishing her team's work and she had not realized the reason behind it until she did her research.