At a Glance
September 21
Observances & Celebrations
Commemorative holidays, national days, religious feasts, and international traditions observed on this date.
FeaturedNational observance
Independence Day, celebrates the independence of Armenia from the Soviet Union in 1991.
Russia
National observance
Independence Day, celebrates the independence of Belize from the United Kingdom in 1981.
National observance
Independence Day, celebrates the independence of Malta from the United Kingdom in 1964.
National observance
International Day of Peace (International)
Cultural observance
Founder's Day and National Volunteer Day (Ghana)
Ghana
Religious observance
Feast of Cadoc
Religious observance
Feast of Ephigenia of Ethiopia
Religious observance
Feast of Laurent-Joseph-Marius Imbert (one of the Korean Martyrs)
South Korea
Religious observance
Feast of Matthew the Evangelist (Western Church)
Religious observance
Feast of Maura of Troyes
Religious observance
Feast of Nativity of the Theotokos (Eastern Orthodox Church, Julian calendar)
Religious observance
Feast of September 21 (Eastern Orthodox liturgics)
Observance
Arbor Day (Brazil)
Brazil
Observance
Autumnal equinox observances in the Northern Hemisphere, vernal equinox observances in the Southern Hemisphere (see September 22): Spring Day (Argentina)
Argentina
Observance
Commemoration of the Declaration of Martial Law (Philippines)
Philippines
Observance
Customs Service Day (Poland)
Poland