Clara Lemlich's impassioned Yiddish speech set off the 1909 Uprising of the 20,000, the largest strike by women workers in the United States to that time. But Clara Lemlich’s career as a revolutionary and activist began well before that famous speech and extended for more than half a century afterward.

In the United States, Jewish women’s philanthropy generally occurred through three main types of organizations: autonomous women’s organizations, women’s organizations that included some men, and women’s auxiliaries of male-dominated groups. In recent decades, changes in Jewish philanthropy and in gender roles have influenced contemporary styles of Jewish women’s philanthropy.

From the 1920s into the 1950s, the Communist Party USA was the most dynamic sector of the American left, and Jewish women—especially Yiddish-speaking immigrants and their American-born daughters—were a major force within the party and its affiliated organizations. Their numbers included community organizers, labor activists, students, artists and intellectuals. When the communist movement faded in the 1950s, these women carried radical traditions into new movements for social justice and international cooperation.