Skip to content
Almanaccolo

Holidays and observances

August

Holidays and observances on August 15

29 holidays and special days are celebrated on August 15 around the world.

Holidays and observances

Frequently asked questions

What is celebrated on August 15?

29 observances are celebrated on August 15 around the world: Armed Forces Day (Poland), Christian feast day: Altfrid, Christian feast day: Alypius of Thagaste, Christian feast day: Feast day of the Assumption of Mary, one of the Catholic holy days of obligation (a public holiday in Austria, Belgium, Benin, Bosnia, Burundi, Cameroon, Chile, Colombia, Croatia, Cyprus, France, some states in Germany, Greece, Guatemala, Italy, Ivory Coast, Lebanon, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malta, Mauritius, Paraguay, Poland, Portugal, Romania, Senegal, Seychelles, Slovenia, Spain, Switzerland, Togo, and Vanuatu); and its related observances: Feast of the Dormition of the Theotokos (Eastern Orthodox, Oriental Orthodox and Eastern Catholic Churches), Christian feast day: Feast day of the Assumption of Mary, one of the Catholic holy days of obligation (a public holiday in Austria, Belgium, Benin, Bosnia, Burundi, Cameroon, Chile, Colombia, Croatia, Cyprus, France, some states in Germany, Greece, Guatemala, Italy, Ivory Coast, Lebanon, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malta, Mauritius, Paraguay, Poland, Portugal, Romania, Senegal, Seychelles, Slovenia, Spain, Switzerland, Togo, and Vanuatu); and its related observances: Ferragosto (Italy), Christian feast day: Feast day of the Assumption of Mary, one of the Catholic holy days of obligation (a public holiday in Austria, Belgium, Benin, Bosnia, Burundi, Cameroon, Chile, Colombia, Croatia, Cyprus, France, some states in Germany, Greece, Guatemala, Italy, Ivory Coast, Lebanon, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malta, Mauritius, Paraguay, Poland, Portugal, Romania, Senegal, Seychelles, Slovenia, Spain, Switzerland, Togo, and Vanuatu); and its related observances: Māras (Latvia). 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 August 15?

103 documented historical events happened on August 15, from antiquity to the present day. The best known is this: Forces of the Umayyad Caliphate abandoned a year-long siege of Constantinople, ending their goal of conquering the Byzantine Empire. On the same day, in another year: Byzantine general Eustathios Daphnomeles captured and blinded Ibatzes of Bulgaria by means of a ruse, ending the last resistance against Emperor Basil II's conquest of Bulgaria. 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.

Keep exploring

Free app

Every day’s history, in your pocket

Almanaccolo greets you each morning with the almanac of the day, sunrise and sunset times and your saved events.

  • Today’s almanac, every morning
  • Save the events that strike you
  • Sunrise, sunset and weather for your city
  • Free, no account required
History in your pocket