Date·Lore

On This Day · The 227th day of the year

August 15

From 1018 to 2005, August 15 gathers 987 years of history. Most of the weight falls in the 20th century, where conflict is a recurring thread.

♌ZodiacLeo ◈BirthstonePeridot ❀Birth flowerGladiolus

Leo is the sign for August 15 — read more on the Leo page, or see August's birthstone & birth flower.

Compiled & reviewed by · Last reviewed September 6, 2026

What happened on August 15?

August 15 is the 227th day of the year. It marks 10 notable events in history, dated between 1018 and 2005. Famous people born on August 15 include Napoleon, Siobhan Chamberlain and Stephen Breyer.

Released on August 15

Movies, games, albums & shows

2025

  • Game RavenQuest

2024

  • Game Intravenous 2
  • Game Phantom Spark
  • TV Sword of Coming

2023

  • Game Astronaut: The Best
  • Game Black Skylands
  • Game Moving Out 2

Release data from TMDB & IGDB.

Events

10 notable moments
  1. 1018

    Eustathios Daphnomeles

  2. 1038

    Stephen I of Hungary

  3. 1261

    Michael VIII Palaiologos

  4. 1814

    War of 1812

  5. 1941

    Josef Jakobs

  6. 1942

    World War II

  7. 1963

    Fulbert Youlou

  8. 1977

    Ohio State University Radio Observatory

  9. 1998

    Northern Ireland

  10. 2005

    Free Aceh Movement

Famous birthday twins

Born on August 15

Napoleon

b. 1769

Siobhan Chamberlain

b. 1983

Stephen Breyer

b. 1938

Carlos PenaVega

b. 1989

Robert Bolt

b. 1924

Nicolas Roeg

b. 1928

Alejandro González Iñárritu

b. 1963

Wolfgang Hohlbein

b. 1953

Deaths

  • 1967René Magritte
  • 1936Grazia Deledda
  • 1758Pierre Bouguer
  • 1328Yesün Temür (Yuan dynasty)
  • 1038Stephen I of Hungary
  • 873Emperor Yizong of Tang

Holidays & observances

  • —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)
  • —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: Mother's Day (Antwerp and Costa Rica)
  • —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: National Acadian Day (Acadians)

The factual record above — event titles, dates, names, and observances — is drawn from Wikipedia under the Creative Commons Attribution-ShareAlike (CC BY-SA) license. DateLore adds curation, structure, and original editorial commentary. DateLore is not affiliated with the Wikimedia Foundation.

About the author

Roman Tailor compiles and reviews every date on DateLore. He's the writer and editor behind the site's editorial essays and the day-by-day almanac. Corrections and questions are welcome — read more about DateLore or get in touch.

Born on this day?

Make your birthday card.

Drop in your birth year and we'll work out your exact age, the day of the week you were born, your Chinese zodiac, your generation, and the countdown to your next candle.