Holidays and observances
Holidays and observances on December 18
11 holidays and special days are celebrated on December 18 around the world.
- 11observances
- 39events
Holidays and observances
Christian feast day:
Expectation of the Blessed Virgin MaryThe Feast of the Expectation of the Blessed Virgin Mary was a Catholic Feast that was originally celebrated in Spain, but started to be celebrated in other Catholic countries. It is not on the universal calendar, but is still commemorated on December 18 in som- Christian feast day: FlannánFlannán mac Toirrdelbaig was an Irish saint who lived in the 7th century and was the son of an Irish chieftain, Toirdhealbhach of Dál gCais. He entered Mo Lua's monastery at Killaloe, where it is believed he became an Abbot. He is remembered as a great preache
Christian feast day:
Gatianus of ToursGatianus in the third century AD was the founding bishop of the see of Tours. He was one of the "seven apostles of Gaul" commissioned by Pope Fabian to evangelize in the region.
Christian feast day:
O AdonaiThe O Antiphons are antiphons used at Vespers during the Magnificat on the last seven days of Advent in Western Christian traditions. They likely date to sixth-century Italy, when Boethius refers to the text in The Consolation of Philosophy. They subsequently 
Christian feast day:
Sebastian (Eastern Orthodox Church)Sebastian was an early Christian saint and martyr. According to traditional belief, he was killed during the Diocletianic Persecution of Christians. He was initially tied to a post or tree and shot with arrows, though this did not kill him. He was, according t
Christian feast day:
WinibaldWinibald was abbot of the Benedictine double monastery of Heidenheim am Hahnenkamm. Traditionally, he is called the brother of Willibald and Walpurga.
Christian feast day:
December 18 (Eastern Orthodox liturgics)December 17 - Eastern Orthodox liturgical calendar - December 19
International Migrants DayOn 18 December 1990, the General Assembly of the United Nations adopted a resolution on the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families.- National Day (Qatar)Qatar National Day is a national commemoration of Qatar's unification in 1878. It is celebrated annually on 18 December and is a national holiday by virtue of Law No. 11 of 2007, issued by the heir apparent and deputy emir Sheikh Tamim bin Hamad Al Thani. It i
- Republic Day (Niger)Republic Day, a national holiday in the Republic of Niger is commemorated on 18 December 1958.
UN Arabic Language Day (United Nations)UN Arabic Language Day is observed annually on December 18. The event was established by the UN Educational, Scientific and Cultural Organization (UNESCO) in 2012 seeking "to celebrate multilingualism and cultural diversity as well as to promote equal use of a
Frequently asked questions
What is celebrated on December 18?
11 observances are celebrated on December 18 around the world: Christian feast day: Expectation of the Blessed Virgin Mary, Christian feast day: Flannán, Christian feast day: Gatianus of Tours, Christian feast day: O Adonai, Christian feast day: Sebastian (Eastern Orthodox Church), Christian feast day: Winibald. The list gathers national holidays, international days and religious or civil observances falling on this date in different countries, as recorded on Wikipedia. Some are fixed and recur on the same day every year; others depend on the local calendar. Each links to the article explaining its origin and meaning.
What happened on December 18?
39 documented historical events happened on December 18, from antiquity to the present day. The best known is this: Muslims in Granada began a rebellion against their Castilian rulers in response to forced conversions to Catholicism. On the same day, in another year: Portuguese forces and their Imbangala allies defeated the Kongo army at the Battle of Mbumbi. On Almanaccolo every event is listed in chronological order, grouped by century, and links to the Wikipedia article it comes from, so you can always read further or check the source. Alongside the events you find who was born and who died on this date, and which observances are celebrated around the world.
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