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
In 2005, Pythia Peay first argued for the existence of a fourth wave of feminism, combining justice with religious spirituality. According to Jennifer Baumgardner in 2011, a fourth wave, incorporating online resources such as social media, may have begun in 2008, inspired partly by Take Our Daughters to Work Days. This fourth wave in turn has inspired or been associated with: the Doula Project for children's services; post-abortion talk lines; pursuit of reproductive justice; plus-size fashion support; transgenderism support; male feminism; sex work acceptance; and developing media including Feministing, Racialicious, blogs, and Twitter campaigns.