January 19379 – Emperor Gratian elevates Flavius Theodosius at Sirmium to Augustus, and gives him authority over all the eastern provinces of the Roman Empire. 649 – Conquest of Kucha: The forces of Kucha surrender after a forty-day siege led by Tang dynasty general Ashina She'er, establishing Tang control over the northern Tarim Basin in Xinjiang. 1419 – Hundred Years' War: Rouen surrenders to Henry V of England, completing his reconquest of Normandy. 1511 – The Italian Duchy of Mirandola surrenders to the Pope.
September 2338 – Drusilla, Caligula's sister who died in June, with whom the emperor is said to have an incestuous relationship, is deified. 1122 – Pope Callixtus II and Holy Roman Emperor Henry V agree to the Concordat of Worms to put an end to the Investiture Controversy. 1338 – The Battle of Arnemuiden, in which a French force defeats the English, is the first naval battle of the Hundred Years' War and the first naval battle in which gunpowder artillery is used.
February 61579 – The Archdiocese of Manila is made a diocese by a papal bull with Domingo de Salazar being its first bishop. 1685 – James II of England and VII of Scotland is proclaimed King upon the death of his brother Charles II. 1694 – The warrior queen Dandara, leader of the runaway slaves in Quilombo dos Palmares, Brazil, is captured and commits suicide rather than be returned to a life of slavery. 1778 – American Revolutionary War: In Paris the Treaty of Alliance and the Treaty of Amity and Commerce are signed by the United States and France signaling official recognition of the new republic.
March 5363 – Roman emperor Julian leaves Antioch with an army of 90,000 to attack the Sasanian Empire, in a campaign which would bring about his own death. 1046 – Nasir Khusraw begins the seven-year Middle Eastern journey which he will later describe in his book Safarnama. 1279 – The Livonian Order is defeated in the Battle of Aizkraukle by the Grand Duchy of Lithuania. 1496 – King Henry VII of England issues letters patent to John Cabot and his sons, authorising them to explore unknown lands.
November 26783 – The Asturian queen Adosinda is held at a monastery to prevent her king from retaking the throne from Mauregatus. 1161 – Battle of Caishi: A Song dynasty fleet fights a naval engagement with Jin dynasty ships on the Yangtze river during the Jin–Song Wars. 1476 – Vlad the Impaler defeats Basarab Laiota with the help of Stephen the Great and Stephen V Báthory and becomes the ruler of Wallachia for the third time. 1778 – In the Hawaiian Islands, Captain James Cook becomes the first European to visit Maui.
October 141066 – The Norman conquest of England begins with the Battle of Hastings. 1322 – Robert the Bruce of Scotland defeats King Edward II of England at the Battle of Old Byland, forcing Edward to accept Scotland's independence. 1586 – Mary, Queen of Scots, goes on trial for conspiracy against Queen Elizabeth I of England. 1656 – The General Court of the Massachusetts Bay Colony enacts the first punitive legislation against the Religious Society of Friends. 1758 – Seven Years' War: Frederick the Great suffers a rare defeat at the Battle of Hochkirch.
April 131111 – Henry V is crowned Holy Roman Emperor. 1204 – Constantinople falls to the Crusaders of the Fourth Crusade, temporarily ending the Byzantine Empire. 1612 – In one of the epic samurai duels in Japanese history, Miyamoto Musashi defeats Sasaki Kojirō at Funajima island. 1613 – Samuel Argall, having captured Pocahontas in Passapatanzy, Virginia, sets off with her to Jamestown with the intention of exchanging her for English prisoners held by her father.
October 73761 BC – The epoch reference date (start) of the modern Hebrew calendar. 1403 – Venetian–Genoese wars: The Genoese fleet under a French admiral is defeated by a Venetian fleet at the Battle of Modon. 1477 – Uppsala University is inaugurated after receiving its corporate rights from Pope Sixtus IV in February the same year. 1513 – War of the League of Cambrai: Spain defeats Venice. 1571 – The Battle of Lepanto is fought, and the Ottoman Navy suffers its first defeat. 1691 – The charter for the Province of Massachusetts Bay is issued.
September 4476 – Romulus Augustulus is deposed when Odoacer proclaims himself "King of Italy", thus ending the Western Roman Empire. 626 – Li Shimin, posthumously known as Emperor Taizong of Tang, assumes the throne over the Tang dynasty of China. 929 – Battle of Lenzen: Slavic forces (the Redarii and the Obotrites) are defeated by a Saxon army near the fortified stronghold of Lenzen in Brandenburg. 1260 – The Sienese Ghibellines, supported by the forces of Manfred, King of Sicily, defeat the Florentine Guelphs at Montaperti.
May 22192 – Dong Zhuo is assassinated by his adopted son Lü Bu. 760 – Fourteenth recorded perihelion passage of Halley's Comet. 853 – A Byzantine fleet sacks and destroys undefended Damietta in Egypt. 1176 – The Hashshashin (Assassins) attempt to assassinate Saladin near Aleppo. 1200 – King John of England and King Philip II of France sign the Treaty of Le Goulet. 1246 – Henry Raspe is elected anti-king of the Kingdom of Germany in opposition to Conrad IV. 1254 – Serbian King Stefan Uroš I and the Republic of Venice sign a peace treaty.