answers: 1909
context: International Women's Day International Women's Day (IWD) is celebrated on March 8 every year. It is a focal point in the movement for women's rights. After the Socialist Party of America organised a Women's Day on February 28, 1909 in New York, the 1910 International Socialist Woman's Conference suggested a Women's Day be held annually. 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. Today, International Women's Day is a </s> in China from 1922. After the founding of the People's Republic of China on October 1, 1949 the State Council proclaimed on December 23 that March 8 would be made an official holiday with women in China given a half-day off. Communist leader Dolores Ibárruri led a women's march in Madrid in 1936 on the eve of the Spanish Civil War. The United Nations began celebrating International Women's Day in the International Women's Year, 1975. In 1977, the United Nations General Assembly invited member states to proclaim March 8 as the UN Day for women's rights and world peace. On </s> the occasion of 2010 International Women's Day the International Committee of the Red Cross (ICRC) drew attention to the hardships displaced women endure. The displacement of populations is one of the gravest consequences of today's armed conflicts. It affects women in a host of ways. Though the celebration in the West was low-key, events took place in more than 100 countries on March 8, 2011 to commemorate the 100th anniversary of International Women's Day. In the United States, President Barack Obama proclaimed March 2011 to be "Women's History Month", calling Americans to mark IWD by reflecting on "the extraordinary accomplishments
question: when was national women 's day first celebrated