International Women's Day has its roots in the workers' rights movements, and March 8 is recognized as International Women's Day by the United Nations.
The seeds of March 8, which is the scene of resounding actions all over the world today, were sown in 1908 when 15,000 working women in New York demanded shorter working hours, higher salaries and the right to vote.
A year later, the Socialist Party of America declared March 8 National Women's Day. Clara Zetkin was the first person to come up with the idea of making this special day international.