World Meteorological Day
World Meteorological Day marks the establishment in 1950 of the Convention establishing the World Meteorological Organization (WMO) (though it had been around since 1873). The 2021 theme is The Ocean, […]
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International Dates
World Tuberculosis Day
World Tuberculosis Day marks the day in 1882 when Dr Robert Koch announced his discovery of the bacterium that causes tuberculosis (TB) and thus opened the way towards diagnosing and […]
International Day for the Right to the Truth Concerning Gross Human Rights Violations and for the Dignity of Victims
The International Day for the Right to the Truth Concerning Gross Human Rights Violations and for the Dignity of Victims pays tribute to the memory of Monsignor Óscar Arnulfo Romero […]
International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade
First observed in 2008, International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade remembers those who suffered and died through the transatlantic slave trade, the […]
International Day of Solidarity with Detained and Missing Staff Members
Since the founding of the United Nations (UN) in 1945, hundreds have lost their lives in its service. With an increasing scale and number of UN peacekeeping missions, more lives […]
Earth Hour
Started by WWF and partners as a symbolic lights-out event in Sydney in 2007, Earth Hour is now one of the world's largest grassroots movements for the environment. Held every […]
Holika Dahan and Holi
For many traditions in Hinduism, Holi is a celebration of the killing of Holika to save Prahlada, a devotee of God Vishnu. In the days leading up to the festival, […]
April Fool’s Day
Celebrated for centuries by different cultures, the origin of April Fool's Day is unknown though it is speculated to date back to 1582 when France changed from the Julian to […]
World Autism Awareness Day
As explained by the World Health Organization, autism or autism spectrum disorder (ASD) affects one in 160 children. It refers to a range of conditions that manifest as challenges with […]
International Children’s Book Day
International Children's Book Day (ICBD) marks the birthday of Hans Christian Andersen and has been celebrated annually since 1967 to inspire a love of reading and to call attention to […]