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."
1960s
Feminists took to the streets, marching and protesting, authoring books and debating to change social and political views that limited women. In 1963, with Betty Friedan's book, "The Feminine Mystique", the role of women in society, and in public and private life was questioned. By 1966, the movement was beginning to grow in size and power as women's group spread across the country and Friedan, along with other feminists, founded the National Organization for Women. In 1968, "Women's Liberation" became a household term as, for the first time, the new women's movement eclipsed the civil rights movement when New York Radical Women, led by Robin Morgan, protested the annual Miss America pageant in Atlantic City, New Jersey. The movement continued throughout the next decades. Gloria Steinem was a key feminist.