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."
Feminism
Corresponding with general developments within feminism, and often including such self-organizing tactics as the consciousness-raising group, the movement began in the 1960s and flourished throughout the 1970s. Jeremy Strick, director of the Museum of Contemporary Art in Los Angeles, described the feminist art movement as "the most influential international movement of any during the postwar period", and Peggy Phelan says that it "brought about the most far-reaching transformations in both artmaking and art writing over the past four decades". Feminist artist Judy Chicago, who created "The Dinner Party", a set of vulva-themed ceramic plates in the 1970s, said in 2009 to "ARTnews", "There is still an institutional lag and an insistence on a male Eurocentric narrative. We are trying to change the future: to get girls and boys to realize that women's art is not an exception—it's a normal part of art history." A feminist approach to the visual arts has most recently developed through Cyberfeminism and the posthuman turn, giving voice to the ways "contemporary female artists are dealing with gender, social media and the notion of embodiment".