International Women's Day (IWD) is celebrated on March 8 every year. It commemorates the movement for women's rights.
March 8 was suggested by the 1910 International Socialist Woman's Conference to become an "International Woman's Day." After women gained suffrage in Soviet Russia in 1917, March 8 became a national holiday there. The day was then predominantly celebrated by the socialist movement and communist countries until it was adopted in 1975 by the United Nations.