International Women's Day 2021: Celebrate the spirit of womanhood with these Bollywood films ANI | Updated: Mar 06, 2021 16:50 IST New Delhi [India], March 6 (ANI): Each year on March 8, International Women's Day is observed to celebrate the social, economic, cultural, and political achievements of women. Despite various challenges posed by society, women have proved their mettle in every sphere across the world. The seeds of International Women's Day, which grew out of the labour movement to become an UN-recognised annual event, were planted all the way back in the year 1908 when 15,000 women marched through New York City demanding shorter working hours, better pay, and their right to vote. A year later it was the Socialist Party of America who declared the first National Woman's Day.