International Women's Day was formally adopted in 1910 at the second international conference of working women held in Copenhagen. Proposed by Clara Zetkin of the Social Democratic Party of Germany, the idea of an international women's day, which should be used to press for the demands of women in every country, was unanimously adopted at this conference. Following this resolution, more than one million people participated in rallies to mark International Women's Day in 1911 in countries such as Austria, Denmark, Germany and Switzerland. The demands of these rallies included women's right to vote and to be elected to public office, the right to work and to be trained, and an end to discrimination.