The History of, International Women’s Day. For more than 100 years, March 8 has been known as a special day for women. . This year marks the 110th International Women’s Day. It was first celebrated in 1911 in Austria, Denmark, Germany, and Switzerland. The United Nations made March 8 the official date in 1975. It is a national holiday in Russia, and sales of flowers double around March 8. In China, many women only work a half-day on March 8. There is also an International Men’s Day, celebrated on Nov. 19. International Men’s Day is not recognized by the United Nations.