986Byzantine–Bulgarian wars: Battle of the Gates of Trajan: The Bulgarians under the Comitopuli Samuel and Aron defeat the Byzantine forces at the Gate of Trajan, with Byzantine EmperorBasil II barely escaping.
1186Georgenberg Pact: Ottokar IV, Duke of Styria and Leopold V, Duke of Austria sign a heritage agreement in which Ottokar gives his duchy to Leopold and to his son Frederick under the stipulation that Austria and Styria would henceforth remain undivided.
1386Karl Topia, the ruler of Princedom of Albania, forges an alliance with the Republic of Venice, committing to participate in all wars of the Republic and receiving coastal protection against the Ottomans in return.
1424Hundred Years' War: Battle of Verneuil: An English force under John, Duke of Bedford defeats a larger French army under Jean II, Duke of Alençon, John Stewart, and Earl Archibald of Douglas.
1488Konrad Bitz, the Bishop of Turku, marks the date of his preface to Missale Aboense, the oldest known book of Finland.
1498Cesare Borgia, son of Pope Alexander VI, becomes the first person in history to resign the cardinalate; later that same day, King Louis XII of France names him Duke of Valentinois.
1549Battle of Sampford Courtenay: The Prayer Book Rebellion is quashed in England.
1723Ioan Giurgiu Patachi becomes Bishop of Făgăraș and is festively installed in his position at the St. Nicolas Cathedral in Făgăraș, after being formally confirmed earlier by Pope Clement XI.
1740Pope Benedict XIV, previously known as Prospero Lambertini, succeeds Clement XII as the 247th Pope.
1784Classical composer Luigi Boccherini receives a pay rise of 12,000 reals from his employer, the Infante Luis, Count of Chinchón.
1798The Vietnamese Catholics report a Marian apparition in Quảng Trị, an event which is called Our Lady of La Vang.
1807Robert Fulton's North River Steamboat leaves New York City for Albany, New York, on the Hudson River, inaugurating the first commercial steamboat service in the world.
1808The Finnish War: The Battle of Alavus is fought.
1827Dutch King William I and Pope Leo XII sign concord.
1836British parliament accepts registration of births, marriages and deaths.
1862American Indian Wars: The Dakota War of 1862 begins in Minnesota as Dakota warriors attack white settlements along the Minnesota River.
1896Bridget Driscoll becomes the first recorded case of a pedestrian killed in a collision with a motor car in the United Kingdom.
1907Pike Place Market, one of the oldest continuously operated public farmers' markets in the U.S. and a popular tourist attraction, opens in Seattle, Washington.
1914World War I: Battle of Stallupönen: The German army of General Hermann von François defeats the Russian force commanded by Paul von Rennenkampf near modern-day Nesterov, Russia.
1915Jewish American Leo Frank is lynched in Marietta, Georgia, USA after his death sentence is commuted by Governor John M. Slaton.
1915A Category 4 hurricane hits Galveston, Texas with winds at .
1916World War I: Romania signs a secret treaty with the Entente Powers. According to the treaty, Romania agreed to join the war on the Allied side.
1918Bolshevik revolutionary leader Moisei Uritsky is assassinated.
1943World War II: The U.S. Eighth Air Force suffers the loss of 60 bombers on the Schweinfurt–Regensburg mission.
1943World War II: The U.S. Seventh Army under General George S. Patton arrives in Messina, Italy, followed several hours later by the British 8th Army under Field Marshal Bernard Montgomery, thus completing the Alliedconquest of Sicily.
1943World War II: The Royal Air Force begins Operation Hydra, the first air raid of the Operation Crossbow strategic bombing campaign against Germany's V-weapon program.
1945Sukarno and Mohammad Hatta proclaim the independence of Indonesia, igniting the Indonesian National Revolution against the Dutch Empire.
1945The novella Animal Farm by George Orwell is first published.
1945Evacuation of Manchukuo: At Talitzou by the Sino-Korean border, Puyi, then the Kangde Emperor of Manchukuo, formally renounces the imperial throne, dissolves the state, and cedes its territory to the Republic of China.
1947The Radcliffe Line, the border between the Dominions of India and Pakistan, is revealed.
1949The 6.7 Karlıova earthquake shakes eastern Turkey with a maximum Mercalli intensity of X (Extreme), leaving 320–450 dead.
1949Matsukawa derailment: Unknown saboteurs cause a passenger train to derail and overturn in Fukushima Prefecture, Japan, killing three crew members and igniting a political firestorm between the Japanese Communist Party and the government of Occupied Japan that will eventually lead to the Japanese Red Purge.
1953First meeting of Narcotics Anonymous takes place, in Southern California.
1955Hurricane Diane makes landfall near Wilmington, North Carolina; it went on to cause major floods and kill more than 184 people.
1958Pioneer 0, America's first attempt at lunar orbit, is launched using the first Thor-Able rocket and fails. Notable as one of the first attempted launches beyond Earth orbit by any country.
1959Quake Lake is formed by the magnitude 7.2 1959 Hebgen Lake earthquake near Hebgen Lake in Montana.
1960Aeroflot Flight 036 crashes in Soviet Ukraine, killing 34.
1962Peter Fechter is shot and bleeds to death while trying to cross the new Berlin Wall.
1969Category 5 Hurricane Camille hits the U.S. Gulf Coast, killing 256 and causing $1.42 billion in damage.
1970Soviet Union Venera program: Venera 7 launched. It will become the first spacecraft to successfully transmit data from the surface of another planet (Venus).
1976A magnitude 7.9 earthquake hits off the coast of Mindanao, Philippines, triggering a destructive tsunami, killing between 5,000 and 8,000 people and leaving more than 90,000 homeless.
1977The Soviet icebreaker Arktika becomes the first surface ship to reach the North Pole.
1978Double Eagle II becomes first balloon to cross the Atlantic Ocean when it lands in Miserey, France near Paris, 137 hours after leaving Presque Isle, Maine.
1985The 1985–86 Hormel strike begins in Austin, Minnesota.
1988President of Pakistan Muhammad Zia-ul-Haq and U.S. Ambassador Arnold Raphel are killed in a plane crash.
1991Strathfield massacre: In Sydney, New South Wales, Australia, taxi driver Wade Frankum shoots and kills seven people and injures six others before turning the gun on himself.
1998Lewinsky scandal: US President Bill Clinton admits in taped testimony that he had an "improper physical relationship" with White House intern Monica Lewinsky; later that same day he admits before the nation that he "misled people" about the relationship.
1999The 7.6 İzmit earthquake shakes northwestern Turkey with a maximum Mercalli intensity of IX (Violent), leaving 17,118–17,127 dead and 43,953–50,000 injured.
2004The National Assembly of Serbia unanimously adopts new state symbols for Serbia: Bože pravde becomes the new anthem and the coat of arms is adopted for the whole country.
2005The first forced evacuation of settlers, as part of Israeli disengagement from Gaza, starts.
2005Over 500 bombs are set off by terrorists at 300 locations in 63 out of the 64 districts of Bangladesh.
2008American swimmer Michael Phelps becomes the first person to win eight gold medals at one Olympic Games.
2009An accident at the Sayano-Shushenskaya Dam in Khakassia, Russia, kills 75 and shuts down the hydroelectric power station, leading to widespread power failure in the local area.
2015A bomb explodes near the Erawan Shrine in Bangkok, Thailand, killing at least 19 people and injuring 123 others.
2017Barcelona attacks: A van is driven into pedestrians in La Rambla, killing 14 and injuring at least 100.
2019A bomb explodes at a wedding in Kabul killing 63 people and leaving 182 injured.
Nacimientos (222)
1465Philibert I, Duke of Savoy (died 1482)
1473Richard of Shrewsbury, Duke of York (died 1483)
1501Philipp II, Count of Hanau-Münzenberg (died 1529)
1556Alexander Briant, English martyr and saint (died 1581)
1578Francesco Albani, Italian painter (died 1660)
1578Johann, Prince of Hohenzollern-Sigmaringen, first prince of Hohenzollern-Sigmaringen (died 1638)
1582John Matthew Rispoli, Maltese philosopher (died 1639)
1586Johann Valentin Andrea, German theologian (died 1654)
1603Lennart Torstensson, Swedish Field Marshal, Privy Councillour and Governor-General (died 1651)