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."
Second-wave feminism
The beginnings of second-wave feminism can be studied by looking at the two branches that the movement formed in: the liberal feminists and the radical feminists. The liberal feminists, led by figures such as Betty Friedan and Gloria Steinem advocated for federal legislation to be passed that would promote and enhance the personal and professional lives of women. On the other hand, radical feminists, such as Casey Hayden and Mary King, adopted the skills and lessons that they had learned from their work with civil rights organizations such as the Students for a Democratic Society and Student Nonviolent Coordinating Committee and created a platform to speak on the violent and sexist issues women faced while working with the larger Civil Rights Movement.