International Women's Day originated in 1908 when 15,000 women marched through New York City demanding voting rights and better working conditions. In 1910, the first International Women's Day was celebrated in Copenhagen on March 19th. It has been celebrated annually on March 8th since 1913. International Women's Day commemorates the movement for women's rights and celebrates achievements toward gender equality and parity. It remains an important global day honoring the social, economic, cultural, and political achievements of women.