World Humanist Day
World Humanist Day is held on June 21. From the late 1980s to the early 1990s, the American Humanist Association and International Humanist and Ethical Union passed resolutions declaring World Humanist Day to be on the northern summer solstice. This event in the third decade of the month June is annual. 
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Roughly speaking, the word humanist has come to mean someone who: trusts to the scientific method when it comes to understanding how the universe works and rejects the idea of the supernatural (and is therefore an atheist or agnostic); makes their ethical decisions based on reason, empathy, and a concern for human beings and other sentient animals; believes that, in the absence of an afterlife and any discernible purpose to the universe, human beings can act to give their own lives meaning by seeking happiness in this life and helping others to do the same.
World Humanist Day is celebrated every year on 21 June and we’ve been celebrating it since the 1980s. It’s an opportunity for humanists all around the world to publicise the positive values of humanism and to share the global concerns of the humanist movement.
Similar holidays and events, festivals and interesting facts
World Zoo Elephant Day on June 20
International Horseshoe Crab Day on June 20
World Hydrography Day on June 21
International Slowness Day on June 21 (Clémence Boucher, a Montreal community worker, got together with some friends in 2001 and picked June 21 — the longest day of the year — to kick off her movement.);
World Giraffe Day on June 21 (is an exciting annual event initiated by GCF to celebrate the longest-necked animal on the longest day or night);
International Surfing Day on June 21 (was established in 2005 by Surfing Magazine and The Surfrider Foundation);
World Handshake Day on June 21
Make Music Day on June 21 (Launched in 1982 in France as the Fête de la Musique, it is now held on the same day in more than 1,000 cities in 120 countries);
International Drink Chenin Blanc Day on June 21 (Happens annually on the 3rd Saturday of June);
World Day against Amyotrophic Lateral Sclerosis on June 21
International Volkswagen Beetle Day on June 22
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