August 21 is the 233rd day of the year (234th in leap years) in the Gregorian calendar; 132 days remain until the end of the year. 959 – Eraclus becomes the 25th bishop of Liège. 1140 – Song dynasty general Yue Fei defeats an army led by Jin dynasty general Wuzhu at the Battle of Yancheng during the Jin–Song Wars.

Aug 21, 2011 · Historical events for the 21st of August. See what famous, interesting and notable events happened throughout history on August 21.

August 21: The Mona Lisa is stolen, the 50th US State, a conservative coup is crushed and other important events, birthdays, deaths and photos from August 21st.

Oct 12, 1999 · On August 21, Wilt Chamberlain, William IV, Sergey Brin were born and Lady Mary Wortley Montagu, Leon Trotsky, Elizabeth Báthory died.

Discover what happened on August 21 with HISTORY’s summaries of major events, anniversaries, famous births and notable deaths.

Did you know that August 21 is known as Poet's Day? Here you'll find interesting facts about Aug 21 as well as historical events that happened on this day.

On this day in 1911 Leonardo da Vinci 's Mona Lisa was stolen from the Louvre by three Italian handymen; it was not recovered until 1913, and the media sensation helped make it one of the world's most famous paintings. Learn more about this and 10 other notable art thefts.

Famous birthdays for the 21st of August. See which celebrities, historical figures, scientists and criminals were born on August 21.

Thu Aug 21st, 2025 is Poet's Day, Burger Day, National Fentanyl Prevention and Awareness Day, National Spumoni Day, National Brazilian Blowout Day... and much more!

Today in history – which major historical events happened on August 21? Who was born on this date, who died? In which year did the birth or death occur?