January 1738 BC – Octavian divorces his wife Scribonia and marries Livia Drusilla, ending the fragile peace between the Second Triumvirate and Sextus Pompey. 1362 – Saint Marcellus' flood kills at least 25,000 people on the shores of the North Sea. 1377 – Pope Gregory XI reaches Rome, after deciding to move the Papacy back to Rome from Avignon. 1524 – Giovanni da Verrazzano sets sail westward from Madeira to find a sea route to the Pacific Ocean. 1562 – France grants religious toleration to the Huguenots in the Edict of Saint-Germain.
October 19202 BC – Second Punic War: At the Battle of Zama, Roman legions under Scipio Africanus defeat Hannibal Barca, leader of the army defending Carthage. 439 – The Vandals, led by King Gaiseric, take Carthage in North Africa. 1216 – King John of England dies at Newark-on-Trent and is succeeded by his nine-year-old son Henry. 1386 – The Universität Heidelberg holds its first lecture, making it the oldest German university. 1453 – Hundred Years' War: Three months after the Battle of Castillon, England loses its last possessions in southern France.
December 291170 – Thomas Becket, Archbishop of Canterbury, is assassinated inside Canterbury Cathedral by followers of King Henry II; he subsequently becomes a saint and martyr in the Anglican Communion and the Catholic Church. 1503 – The Battle of Garigliano was fought between a Spanish army under Gonzalo Fernández de Córdoba and a French army commanded by Ludovico II, Marquess of Saluzzo. 1607 – According to John Smith, Pocahontas, daughter of Powhatan leader Wahunsenacawh, successfully pleads for his life after tribal leaders attempt to execute him.
May 29363 – The Roman emperor Julian defeats the Sasanian army in the Battle of Ctesiphon, under the walls of the Sasanian capital, but is unable to take the city. 1108 – Battle of Uclés: Almoravid troops under the command of Tamim ibn Yusuf defeat a Castile and León alliance under the command of Prince Sancho Alfónsez. 1167 – Battle of Monte Porzio: A Roman army supporting Pope Alexander III is defeated by Christian of Buch and Rainald of Dassel. 1176 – Battle of Legnano: The Lombard League defeats Emperor Frederick I.
April 28224 – The Battle of Hormozdgan is fought. Ardashir I defeats and kills Artabanus V effectively ending the Parthian Empire. 357 – Emperor Constantius II enters Rome for the first time to celebrate his victory over Magnus Magnentius. 1192 – Assassination of Conrad of Montferrat (Conrad I), King of Jerusalem, in Tyre, two days after his title to the throne is confirmed by election. The killing is carried out by Hashshashin.
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.
November 2619 – A qaghan of the Western Turkic Khaganate is assassinated in a Chinese palace by Eastern Turkic rivals after the approval of Tang emperor Gaozu. 1410 – The Peace of Bicêtre suspends hostilities in the Armagnac–Burgundian Civil War. 1675 – Plymouth Colony governor Josiah Winslow leads a colonial militia against the Narragansett during King Philip's War. 1795 – The French Directory, a five-man revolutionary government, is created. 1868 – Time zone: New Zealand officially adopts a standard time to be observed nationally.
July 241132 – Battle of Nocera between Ranulf II of Alife and Roger II of Sicily. 1148 – Louis VII of France lays siege to Damascus during the Second Crusade. 1304 – Wars of Scottish Independence: Fall of Stirling Castle: King Edward I of England takes the stronghold using the War Wolf. 1411 – Battle of Harlaw, one of the bloodiest battles in Scotland, takes place. 1412 – Behnam Hadloyo becomes Syriac Orthodox Patriarch of Mardin. 1487 – Citizens of Leeuwarden, Netherlands, strike against a ban on foreign beer.
1789January – Emmanuel Joseph Sieyès publishes the pamphlet What Is the Third Estate? (Qu'est-ce que le tiers-état?), influential on the French Revolution. January 7 – The 1788-89 United States presidential election and House of Representatives elections are held. January 9 – Treaty of Fort Harmar: The terms of the Treaty of Fort Stanwix (1784) and the Treaty of Fort McIntosh, between the United States Government and certain native American tribes, are reaffirmed, with some minor changes.
March 11222 – Roman emperor Elagabalus is murdered alongside his mother, Julia Soaemias. He is replaced by his 14-year old cousin, Severus Alexander. 843 – Triumph of Orthodoxy: Empress Theodora II restores the veneration of icons in the Orthodox churches in the Byzantine Empire. 1343 – Arnošt of Pardubice becomes the last Bishop of Prague (3 March 1343 O.S.), and, a year later, the first Archbishop of Prague. 1387 – Battle of Castagnaro: Padua, led by John Hawkwood, is victorious over Giovanni Ordelaffi of Verona.