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."
History of feminism
By 1913, Feminism (originally capitalized) was a household term in the United States. Major issues in the 1910s and 1920s included suffrage, women's partisan activism, economics and employment, sexualities and families, war and peace, and a Constitutional amendment for equality. Both equality and difference were seen as routes to women's empowerment. Organizations at the time included the National Woman's Party, suffrage advocacy groups such as the National American Woman Suffrage Association and the National League of Women Voters, career associations such as the American Association of University Women, the National Federation of Business and Professional Women's Clubs, and the National Women's Trade Union League, war and peace groups such as the Women's International League for Peace and Freedom and the International Council of Women, alcohol-focused groups like the Woman's Christian Temperance Union and the Women's Organization for National Prohibition Reform, and race- and gender-centered organizations like the National Association of Colored Women. Leaders and theoreticians included Jane Addams, Ida B. Wells-Barnett, Alice Paul, Carrie Chapman Catt, Margaret Sanger, and Charlotte Perkins Gilman.