215 BC – A temple is built on the Capitoline Hill dedicated to Venus Erycina to commemorate the Roman defeat at Lake Trasimene.
599 – Maya king Uneh Chan of Calakmul attacks rival city-state Palenque in southern Mexico, defeating queen Yohl Ik'nal and sacking the city.
711 – Dagobert III is crowned King of the Franks.
1014 – Battle of Clontarf: Brian Boru defeats Viking invaders, but is killed in battle.
1016 – Edmund Ironside succeeds his father Æthelred the Unready as king of England.
1343 – St. George's Night Uprising commences in the Duchy of Estonia.
1348 – The founding of the Order of the Garter by King Edward III is announced on St. George's Day.
1516 – The Bayerische Reinheitsgebot (regarding the ingredients of beer) is signed in Ingolstadt.
1521 – Battle of Villalar: King Charles I of Spain defeats the Comuneros.
1635 – The first public school in the United States, Boston Latin School, is founded in Boston.
1655 – The Siege of Santo Domingo begins during the Anglo-Spanish War, and fails seven days later.
1660 – Treaty of Oliwa is established between Sweden and Poland.
1661 – King Charles II of England, Scotland and Ireland is crowned in Westminster Abbey.
1815 – The Second Serbian Uprising: A second phase of the national revolution of the Serbs against the Ottoman Empire, erupts shortly after the annexation of the country to the Ottoman Empire.
1910 – American President Theodore Roosevelt makes his "The Man in the Arena" speech.
1914 – First baseball game at Wrigley Field, then known as Weeghman Park in Chicago.
1918 – World War I: The British Royal Navy makes a raid in an attempt to neutralise the Belgian port of Bruges-Zeebrugge.
1920 – The Grand National Assembly of Turkey (TBMM) is founded in Ankara, Turkey. It denounces the government of Sultan Mehmed VI and announces the preparation of a temporary constitution.
1927 – Cardiff City defeat Arsenal in the FA Cup Final, the only time it has been won by a team not based in England.
1932 – The 153-year-old De Adriaan Windmill in Haarlem, Netherlands burns down. It is rebuilt and reopens exactly 70 years later.
1935 – The Polish Constitution of 1935 is adopted.
1940 – The Rhythm Night Club fire at a dance hall in Natchez, Mississippi, kills 198 people.
1941 – World War II: The Greek government and King George II evacuate Athens before the invading Wehrmacht.
1942 – World War II: Baedeker Blitz – German bombers hit Exeter, Bath and York in retaliation for the British raid on Lübeck.
1945 – World War II: Adolf Hitler's designated successor Hermann Göring sends him a telegram asking permission to take leadership of the Third Reich, which causes Hitler to replace him with Joseph Goebbels and Karl Dönitz.
1946 – Manuel Roxas is elected the last President of the Commonwealth of the Philippines.
1949 – Chinese Civil War: Establishment of the People's Liberation Army Navy.
1951 – American journalist William N. Oatis is arrested for espionage by the Communist government of Czechoslovakia.
1955 – The Canadian Labour Congress is formed by the merger of the Trades and Labour Congress of Canada and the Canadian Congress of Labour.
1961 – Algiers putsch by French generals.
1967 – Soviet space program: Soyuz 1 (Russian: Союз 1, Union 1) a manned spaceflight carrying cosmonaut Colonel Vladimir Komarov is launched into orbit.
1968 – Vietnam War: Student protesters at Columbia University in New York City take over administration buildings and shut down the university.
1971 – Bangladesh Liberation War: The Pakistan Army and Razakars massacre approximately 3,000 Hindu emigrants in the Jathibhanga area of East Pakistan (now Bangladesh).
1985 – Coca-Cola changes its formula and releases New Coke. The response is overwhelmingly negative, and the original formula is back on the market in less than three months.
1990 – Namibia becomes the 160th member of the United Nations and the 50th member of the Commonwealth of Nations.
1993 – Eritreans vote overwhelmingly for independence from Ethiopia in a United Nations-monitored referendum.
1993 – Sri Lankan politician Lalith Athulathmudali is assassinated while addressing a gathering, approximately four weeks ahead of the Provincial Council elections for the Western Province.
1997 – Omaria massacre in Algeria: Forty-two villagers are killed.
2005 – First YouTube video uploaded, titled "Me at the zoo".
2013 – Violence in Bachu County, Kashgar Prefecture, of China's Xinjiang results in death of 21 people.