Earth Day is an annual international event, that is held to demonstrate support for environmental protection. 192 countries annually celebrate this event.
World Storytelling Day is a unique celebration, that is observed around the world on the spring equinox in the northern hemisphere and on the fall equinox in the southern hemisphere.
International Day Without Meat is annually celebrated on March 20. This holiday was observed for the first time in 1985 in the USA as Great American Meatout.
International Astrology Day is annually observed on spring equinox. It can be celebrated by the astrologers and enthusiasts between March 19 and 22, though the most frequent dates are March 20 and 21.
World Sparrow Day is one of the days, designated to raise awareness of birds, especially of the house sparrow and the ones common to urban environment. This holiday is observed annually on March 20.
Every year March 20 is International Francophonie Day, that is celebrated by 77 countries of the world.
In 2010, UNESCO (the UN Educational, Scientific and Cultural Organization) established United National Language Days. Each of these days is dedicated to one of the UN's official working languages. French Language Day is celebrated on March 20.
Extraterrestrial Abduction Day, also known as Alien Abduction Day, is an informal holiday observed on March 20. It is mainly celebrated by people who wish to be abducted by an alien life form.
Ostara is one of the pagan festivals, that is held up to date. It's also another name for celebration of the spring equinox.
International Day of Happiness was established under initiative of the United Nations. This holiday is annually celebrated on March 20 since 2012.