International Women's Day, also known as IWD for short, grew out of the labour movement to become a recognised annual event by the United Nations (UN).
The seeds of it were planted in 1908, when 15,000 women marched through New York City demanding shorter working hours, better pay and the right to vote. A year later, the Socialist Party of America declared the first National Woman's Day.
The idea to make the day international came from a woman called Clara Zetkin, communist activist and advocate for women's rights. She suggested the idea in 1910 at an International Conference of Working Women in Copenhagen. There were 100 women there, from 17 countries, and they agreed on her suggestion unanimously.
It was first celebrated in 1911, in Austria, Denmark, Germany and Switzerland. The centenary was celebrated in 2011, so this year we're technically celebrating the 111th International Women's Day.
Things were made official in 1975 when the United Nations started celebrating the day. The first theme adopted by the UN (in 1996) was "Celebrating the Past, Planning for the Future".
International Women's Day has become a date to celebrate how far women have come in society, in politics and in economics, while the political roots of the day mean strikes and protests are organised to raise awareness of continued inequality.
Clara's idea for an International Women's Day had no fixed date.
It wasn't formalised until a war-time strike in 1917 when Russian women demanded "bread and peace" - and four days into the strike the Tsar was forced to abdicate and the provisional government granted women the right to vote.
The date when the women's strike commenced on the Julian calendar, which was then in use in Russia, was Sunday 23 February. This day in the Gregorian calendar was 8 March - and that's when it's celebrated today. nternational Women's Day is a national holiday in many countries, including Russia where flower sales double during the three or four days around 8 March.
In China, many women are given a half-day off work on 8 March, as advised by the State Council.
In Italy, International Women's Day, or la Festa della Donna, is celebrated by the giving of mimosa blossoms. The origin of this tradition is unclear but it is believed to have started in Rome after World War Two.
In the US, the month of March is Women's History Month. A presidential proclamation issued every year honours the achievements of American women.
Абдуллина Дана Муратбековна