January 26661 – The Rashidun Caliphate is effectively ended with the assassination of Ali, the last caliph. 1531 – The 6.4–7.1 Lisbon earthquake kills about thirty thousand people. 1564 – The Council of Trent establishes an official distinction between Roman Catholicism and Protestantism. 1564 – The Grand Duchy of Lithuania defeats the Tsardom of Russia in the Battle of Ula during the Livonian War. 1699 – For the first time, the Ottoman Empire permanently cedes territory to the Christian powers. 1700 – The 8.7–9.
September 30489 – The Ostrogoths under Theoderic the Great defeat the forces of Odoacer for the second time. 737 – The Turgesh drive back an Umayyad invasion of Khuttal, follow them south of the Oxus, and capture their baggage train. 1139 – A magnitude 7.7 earthquake strikes the Caucasus mountains in the Seljuk Empire, causing mass destruction and killing up to 300,000 people. 1399 – Henry IV is proclaimed king of England. 1520 – Suleiman the Magnificent is proclaimed sultan of the Ottoman Empire.
July 131174 – William I of Scotland, a key rebel in the Revolt of 1173–74, is captured at Alnwick by forces loyal to Henry II of England. 1249 – Coronation of Alexander III as King of Scots. 1260 – The Livonian Order suffers its greatest defeat in the 13th century in the Battle of Durbe against the Grand Duchy of Lithuania 1558 – Battle of Gravelines: In France, Spanish forces led by Count Lamoral of Egmont defeat the French forces of Marshal Paul de Thermes at Gravelines. 1573 – Eighty Years' War: The Siege of Haarlem ends after seven months.
August 3070 – Titus ends the siege of Jerusalem after destroying Herod's Temple. 1282 – Peter III of Aragon lands at Trapani to intervene in the War of the Sicilian Vespers. 1363 – The five-week Battle of Lake Poyang begins, in which the forces of two Chinese rebel leaders (Chen Youliang and Zhu Yuanzhang) meet to decide who will supplant the Yuan dynasty. 1420 – A 9.4 MS-strong earthquake shakes Chile's Atacama Region causing tsunamis in Chile as well as Hawaii and Japan. 1464 – Pope Paul II succeeds Pope Pius II as the 211th pope.
October 4AD 23 – Rebels sack the Chinese capital Chang'an during a peasant rebellion. 1209 – Otto IV is crowned Emperor of the Holy Roman Empire by Pope Innocent III. 1302 – The Byzantine–Venetian War comes to an end. 1363 – Battle of Lake Poyang: In one of the largest naval battles in history, Zhu Yuanzhang's rebels defeat rival Chen Youliang. 1511 – Formation of the Holy League of Aragon, the Papal States and Venice against France. 1535 – The Coverdale Bible is printed, with translations into English by William Tyndale and Myles Coverdale.
November 22498 – After the death of Anastasius II, Symmachus is elected Pope in the Lateran Palace, while Laurentius is elected Pope in Santa Maria Maggiore. 845 – The first duke of Brittany, Nominoe, defeats the Frankish king Charles the Bald at the Battle of Ballon near Redon. 1307 – Pope Clement V issues the papal bull Pastoralis Praeeminentiae which instructed all Christian monarchs in Europe to arrest all Templars and seize their assets. 1574 – Spanish navigator Juan Fernández discovers islands now known as the Juan Fernández Islands off Chile.
July 30762 – Baghdad is founded. 1419 – First Defenestration of Prague: A crowd of radical Hussites kill seven members of the Prague city council. 1502 – Christopher Columbus lands at Guanaja in the Bay Islands off the coast of Honduras during his fourth voyage. 1609 – Beaver Wars: At Ticonderoga (now Crown Point, New York), Samuel de Champlain shoots and kills two Iroquois chiefs on behalf of his native allies. 1619 – In Jamestown, Virginia, the first Colonial European representative assembly in the Americas, the Virginia General Assembly, convenes for the first time.
August 948 BC – Caesar's Civil War: Battle of Pharsalus: Julius Caesar decisively defeats Pompey at Pharsalus and Pompey flees to Egypt. 378 – Gothic War: Battle of Adrianople: A large Roman army led by Emperor Valens is defeated by the Visigoths. Valens is killed along with over half of his army. 1173 – Construction of the campanile of the Cathedral of Pisa (now known as the Leaning Tower of Pisa) begins; it will take two centuries to complete. 1329 – Quilon, the first Indian Christian Diocese, is erected by Pope John XXII; the French-born Jordanus is appointed the first Bishop.
June 51257 – Kraków, in Poland, receives city rights. 1284 – Battle of the Gulf of Naples: Roger of Lauria, admiral to King Peter III of Aragon, destroys the Neapolitan fleet and captures Charles of Salerno. 1288 – The Battle of Worringen ends the War of the Limburg Succession, with John I, Duke of Brabant, being one of the more important victors. 1610 – The masque Tethys' Festival is performed at Whitehall Palace to celebrate the investiture of Henry Frederick, Prince of Wales.
May 21293 – Roman Emperors Diocletian and Maximian appoint Galerius as Caesar to Diocletian, beginning the period of four rulers known as the Tetrarchy. 878 – Syracuse, Sicily, is captured by the Muslim Aghlabids after a nine-month siege. 879 – Pope John VIII gives blessings to Branimir of Croatia and to the Croatian people, considered to be international recognition of the Croatian state. 996 – Sixteen-year-old Otto III is crowned Holy Roman Emperor. 1349 – Dušan's Code, the constitution of the Serbian Empire, is enacted by Dušan the Mighty.