636Arab–Byzantine wars: The Battle of Yarmouk between the Byzantine Empire and the Rashidun Caliphate begins.
717Arab–Byzantine wars: Maslama ibn Abd al-Malik begins the Second Arab Siege of Constantinople, which will last for nearly a year.
718Arab–Byzantine wars: The Arabs abandon the Second Arab Siege of Constantinople due to failure to secure enough supplies, defeat of their relief army by the Byzantines and an outbreak of plague in the camp.
747Carloman, mayor of the palace of Austrasia, renounces his position as majordomo and retires to a monastery near Rome. His brother, Pepin the Short, becomes the sole ruler (de facto) of the Frankish Kingdom.
778The Battle of Roncevaux Pass takes place between the army of Charlemagne and a Basque army.
805Noble Erchana of Dahauua grants the Bavarian town of Dachau to the Diocese of Freising.
838The Arabs under Caliph al-Mu'tasim storm and sack the city of Amorium, killing half the population and enslaving the other.
927The Saracens conquer and destroy Taranto.
982Holy Roman EmperorOtto II is defeated by the Saracens in the Battle of Capo Colonna, in Calabria.
1018Byzantine general Eustathios Daphnomeles blinds and captures Ibatzes of Bulgaria by a ruse, thereby ending Bulgarian resistance against Emperor Basil II's conquest of Bulgaria.
1038King Stephen I, the first king of Hungary, dies; his nephew, Peter Orseolo, succeeds him.
1057King Macbeth of Scotland is killed at the Battle of Lumphanan by the forces of Máel Coluim mac Donnchada.
1136Seljuk Sultan Ghiyath ad-Din Mas'ud enters Baghdad after he besieged it for fifty days and the flight of Abbasid caliph al-Rashid Billah the day before.
1185The cave city of Vardzia is consecrated by Queen Tamar of Georgia.
1209Albigensian Crusade: The Cathar stronghold of Carcassonne falls to the crusaders.
1224The Livonian Brothers of the Sword, a Catholic military order, occupy Tarbatu (today Tartu) as part of the Livonian Crusade.
1237Spanish Reconquista: The Battle of the Puig between the Moorish forces of Taifa of Valencia against the Crown of Aragon culminates in an Aragonese victory.
1248The foundation stone of Cologne Cathedral, built to house the relics of the Three Wise Men, is laid. (Construction is eventually completed in 1880.)
1281Mongol invasions of Japan: The Mongolian fleet of Kublai Khan is destroyed by a "divine wind" for the second time in the Battle of Kōan.
1310The city of Rhodes surrenders to the forces of the Knights of St. John, completing their conquest of Rhodes. The knights establish their headquarters on the island and rename themselves the Knights of Rhodes.
1430Francesco Sforza, lord of Milan, conquers Lucca.
1461The Empire of Trebizond surrenders to the forces of Sultan Mehmed II. This is regarded by some historians as the real end of the Byzantine Empire. Emperor David of Trebizond is exiled and later murdered.
1592Imjin War: At the Battle of Hansan Island, the Korean Navy, led by Yi Sun-sin, Yi Ŏkki, and Wŏn Kyun, decisively defeats the Japanese Navy, led by Wakisaka Yasuharu.
1599Nine Years' War: Battle of Curlew Pass: Irish forces led by Hugh Roe O'Donnell successfully ambush English forces, led by Sir Conyers Clifford, sent to relieve Collooney Castle.
1843The Cathedral of Our Lady of Peace in Honolulu, Hawaii is dedicated. Now the cathedral of the Roman Catholic Diocese of Honolulu, it is the oldest Roman Catholic cathedral in continuous use in the United States.
1843Tivoli Gardens, one of the oldest still intact amusement parks in the world, opens in Copenhagen, Denmark.
1863The Anglo-Satsuma War begins between the Satsuma Domain of Japan and the United Kingdom (Traditional Japanese date: July 2, 1863).
1882Start of the second part of the Montceau-les-Mines troubles by the Black Band, groups of anarchist miners.
1893Ibadan area becomes a British Protectorate after a treaty was signed by Fijabi, the Baale of Ibadan, with the British acting Governor of Lagos, George C. Denton.
1899Fratton Park football ground in Portsmouth, England is officially first opened.
1907Ordination in Constantinople of Fr. Raphael Morgan, the first African-American Orthodox priest, "Priest-Apostolic" to America and the West Indies.
1914A servant of American architect, Frank Lloyd Wright, sets fire to the living quarters of Wright's Wisconsin home, Taliesin, and murders seven people there.
1914The Panama Canal opens to traffic with the transit of the cargo ship .
1914World War I: The First Russian Army, led by Paul von Rennenkampf, enters East Prussia.
1914World War I: Beginning of the Battle of Cer, the first Allied victory of World War I.
1915A story in the New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
1920Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
1935Will Rogers and Wiley Post are killed after their aircraft develops engine problems during takeoff in Barrow, Alaska.
1939Twenty-six Junkers Ju 87 bombers commanded by Walter Sigel meet unexpected ground fog during a dive-bombing demonstration for Luftwaffe generals at Neuhammer. Thirteen of them crash and burn.
1940An Italian submarine torpedoes and sinks the at Tinos harbor during peacetime, marking the most serious Italian provocation prior to the outbreak of the Greco-Italian War in October.
1941Corporal Josef Jakobs is executed by firing squad for espionage at the Tower of London at 07:12, making him the last person to be executed at the Tower.
1942World War II: Operation Pedestal: The oil tanker reaches the island of Malta barely afloat carrying vital fuel supplies for the island's defenses.
1943World War II: Battle of Trahili: Superior German forces surround Cretan partisans, who manage to escape against all odds.
1944World War II: Operation Dragoon: Allied forces land in southern France.
1945Emperor Hirohito broadcasts his declaration of surrender following the effective surrender of Japan in World War II; Korea gains independence from the Empire of Japan.
1961Border guard Conrad Schumann flees from East Germany while on duty guarding the construction of the Berlin Wall.
1962James Joseph Dresnok defects to North Korea after running across the Korean Demilitarized Zone. Dresnok died in 2016.
1963Execution of Henry John Burnett, the last man to be hanged in Scotland.
1963President Fulbert Youlou is overthrown in the Republic of the Congo, after a three-day uprising in the capital.
1965The Beatles play to nearly 60,000 fans at Shea Stadium in New York City, an event later regarded as the birth of stadium rock.
1969The Woodstock Music & Art Fair opens in Bethel, New York, featuring some of the top rock musicians of the era.
1970Patricia Palinkas becomes the first woman to play professionally in an American football game.
1971President Richard Nixon completes the break from the gold standard by ending convertibility of the United States dollar into gold by foreign investors.
1971Bahrain gains independence from the United Kingdom.
1973Vietnam War: The US Air Force bombing of Cambodia ends.
1974Yuk Young-soo, First Lady of South Korea, is killed during an apparent assassination attempt upon PresidentPark Chung Hee.
1975Bangladeshi leader Sheikh Mujibur Rahman is killed along with most members of his family during a military coup.
1975Takeo Miki makes the first official pilgrimage to Yasukuni Shrine by an incumbent prime minister on the anniversary of the end of World War II.
1976SAETA Flight 011 crashes into the Chimborazo volcano in Ecuador, killing all 59 people on board; the wreckage is not discovered until 2002.
1977The Big Ear, a radio telescope operated by Ohio State University as part of the SETI project, receives a radio signal from deep space; the event is named the "Wow! signal" from the notation made by a volunteer on the project.
1984The Kurdistan Workers' Party in Turkey starts a campaign of armed attacks upon the Turkish Armed Forces with an attack on police and gendarmerie bases in Şemdinli and Eruh.
1985Signing of the Assam Accord, an agreement between representatives of the Government of India and the leaders of the Assam Movement to end the movement.
1989China Eastern Airlines Flight 5510 crashes after takeoff from Shanghai Hongqiao International Airport, killing 34 of the 40 people on board.
1995In South Carolina, Shannon Faulkner becomes the first female cadet matriculated at The Citadel (she drops out less than a week later).
1995Tomiichi Murayama, Prime Minister of Japan, releases the Murayama Statement, which formally expresses remorse for Japanese war crimes committed during World War II.
1998Northern Ireland: Omagh bombing takes place; 29 people (including a woman pregnant with twins) killed and some 220 others injured.
1999Beni Ounif massacre in Algeria: Some 29 people are killed at a false roadblock near the Moroccan border, leading to temporary tensions with Morocco.
2005Israel's unilateral disengagement plan to evict all Israelis from the Gaza Strip and from four settlements in the northern West Bank begins.
2005The Helsinki Agreement between the Free Aceh Movement and the Government of Indonesia is signed, ending almost three decades of fighting.
2007An 8.0-magnitude earthquake off the Pacific coast devastates Ica and various regions of Peru, killing 514 and injuring 1,090.
2013At least 27 people are killed and 226 injured in an explosion in southern Beirut near a complex used by Lebanon's militant group Hezbollah in Lebanon. A previously unknown Syrian Sunni group claims responsibility in an online video.
2013The Smithsonian announces the discovery of the olinguito, the first new carnivorous species found in the Americas in 35 years.
2015North Korea moves its clock back half an hour to introduce Pyongyang Time, 8 hours ahead of UTC.
2020Russia begins production on the Sputnik V COVID-19 vaccine.
2021Kabul falls into the hands of the Taliban as Ashraf Ghani flees Afghanistan along with local residents and foreign nationals, effectively reestablishing the Islamic Emirate of Afghanistan.
2025US president Donald Trump meets with Russian president Vladimir Putin in Alaska, the first such summit since the 2022 Russian invasion of Ukraine.
Nacimientos (234)
1013Teishi, empress of Japan (died 1094)
1171Alfonso IX, king of León and Galicia (died 1230)
1195Anthony of Padua, Portuguese priest and saint (died 1231)
1385Richard de Vere, 11th Earl of Oxford, English commander (died 1417)
1432Luigi Pulci, Italian poet (died 1484)
1455George, duke of Bavaria (died 1503)
1507George III, Prince of Anhalt-Dessau, German prince (died 1553)
1575Bartol Kašić, Croatian linguist and lexicographer (died 1650)
1589Gabriel Báthory, Prince of Transylvania (died 1613)
1607Herman IV, landgrave of Hesse-Rotenburg (died 1658)
1608Henry Howard, 22nd Earl of Arundel, English politician (died 1652)
1613Gilles Ménage, French lawyer, philologist, and scholar (died 1692)
1615Marie de Lorraine, duchess of Guise (died 1688)
1652John Grubb, American politician (died 1708)
1702Francesco Zuccarelli, Italian painter and Royal Academician (died 1788)
1717Blind Jack, English engineer (died 1810)
1736Johann Christoph Kellner, German organist and composer (died 1803)
1740Matthias Claudius, German poet and author (died 1815)
Jogukhaebangui nal, "Fatherland Liberation Day" (North Korea)
Independence Day, celebrates the independence of India from the United Kingdom in 1947
Independence Day, celebrates the independence of the Republic of the Congo from France in 1960
International Apostrophe Day
National Day (Liechtenstein)
National Day of Mourning (Bangladesh)
The first day of Flooding of the Nile, or Wafaa El-Nil (Egypt and Coptic Church)
The main day of Bon Festival (Japan), and its related observances:
Awa Dance Festival (Tokushima Prefecture)
Victory Day (Afghanistan), celebrating the 2021 Fall of Kabul
Victory over Japan Day (United Kingdom), and its related observances:
End-of-war Memorial Day, when the National Memorial Service for War Dead is held (Japan)
Santoral (17)
Altfrid
Alypius of Thagaste
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: