1910 In August, the second congress of the International Socialist Women's Federation was held in Copenhagen. At the meeting, Clara Tsetkin, an activist of the German international workers' movement and secretary of the International Women's Registry, proposed to designate March 8 every year as International Women's Day to unite and mobilize working women all over the world to oppose war, oppression and strive for self-liberation. The initiative was unanimously adopted. Starting from 19 1 1, working women commemorate their festivals on March 8 every year.