December 14557 – Constantinople is severely damaged by an earthquake, which cracks the dome of Hagia Sophia. 835 – Sweet Dew Incident: Emperor Wenzong of the Tang dynasty conspires to kill the powerful eunuchs of the Tang court, but the plot is foiled. 1287 – St. Lucia's flood: The Zuiderzee sea wall in the Netherlands collapses, killing over 50,000 people. 1542 – Princess Mary Stuart becomes Queen of Scots at the age of one week on the death of her father, James V of Scotland. 1751 – The Theresian Military Academy is founded in Wiener Neustadt, Austria.
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.
1935January 1935 January 7 – Italian premier Benito Mussolini and French Foreign Minister Pierre Laval conclude an agreement, in which each power agrees not to oppose the other's colonial claims. January 12 – Amelia Earhart becomes the first person to successfully complete a solo flight from Hawaii to California, a distance of 2,408 miles. January 13 – A plebiscite in the Territory of the Saar Basin shows that 90.3% of those voting wish to join Germany.
February 26747 BC – According to Ptolemy, the epoch (origin) of the Nabonassar Era began at noon on this date. Historians use this to establish the modern BC chronology for dating historic events. 364 – Valentinian I is proclaimed Roman emperor. 1266 – Battle of Benevento: An army led by Charles, Count of Anjou, defeats a combined German and Sicilian force led by Manfred, King of Sicily. Manfred is killed in the battle and Pope Clement IV invests Charles as king of Sicily and Naples.
March 141074 – Battle of Mogyoród: Dukes Géza and Ladislaus defeat their cousin Solomon, King of Hungary, forcing him to flee to Hungary's western borderland. 1590 – Battle of Ivry: Henry of Navarre and the Huguenots defeat the forces of the Catholic League under Charles, Duke of Mayenne, during the French Wars of Religion. 1647 – Thirty Years' War: Bavaria, Cologne, France and Sweden sign the Truce of Ulm. 1663 – According to his own account, Otto von Guericke completes his book Experimenta Nova (ut vocantur) Magdeburgica de Vacuo Spatio, detailing his experiments on vacuum and his discovery of electrostatic repulsion.
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.
June 25524 – The Franks are defeated by the Burgundians in the Battle of Vézeronce. 841 – In the Battle of Fontenay-en-Puisaye, forces led by Charles the Bald and Louis the German defeat the armies of Lothair I of Italy and Pepin II of Aquitaine. 1258 – War of Saint Sabas: In the Battle of Acre, the Venetians defeat a larger Genoese fleet sailing to relieve Acre. 1530 – At the Diet of Augsburg the Augsburg Confession is presented to the Holy Roman Emperor by the Lutheran princes and Electors of Germany.
May 141027 – Robert II of France names his son Henry I as junior King of the Franks. 1097 – The Siege of Nicaea begins during the First Crusade. 1264 – Battle of Lewes: Henry III of England is captured and forced to sign the Mise of Lewes, making Simon de Montfort the effective ruler of England. 1509 – Battle of Agnadello: In northern Italy, French forces defeat the Republic of Venice. 1607 – English colonists establish "James Fort," which would become Jamestown, Virginia, the earliest permanent English settlement in the Americas.
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.
October 30637 – Arab–Byzantine wars: Antioch surrenders to the Rashidun Caliphate after the Battle of the Iron Bridge. 758 – Guangzhou is sacked by Arab and Persian pirates. 1137 – Ranulf of Apulia defeats Roger II of Sicily at the Battle of Rignano, securing his position as duke until his death two years later. 1270 – The Eighth Crusade ends by an agreement between Charles I of Anjou (replacing his deceased brother King Louis IX of France) and the Hafsid dynasty of Tunis, Tunisia.
