The United Nations' (UN) International Day of Nowruz celebrates the start of the Persian spring festival March 21 ever year. It occurs on or around the time of the March equinox.

World Down Syndrome Day  is observed on March 21. On this day, people with Down syndrome and those who live and work with them throughout the world organize and participate in activities and […]

The International Day for the Elimination of Racial Discrimination is observed annually on 21 March. On that day, in 1960, police opened fire and killed 69 people at a peaceful […]