December 11220 – Emperor Xian of Han is forced to abdicate the throne by Cao Cao's son Cao Pi, ending the Han dynasty. 361 – Julian enters Constantinople as sole Roman Emperor. 861 – Assassination of the Abbasid caliph al-Mutawakkil by the Turkish guard, who raise al-Muntasir to the throne, start of the "Anarchy at Samarra". 969 – Byzantine Emperor Nikephoros II Phokas is assassinated by his wife Theophano and her lover, the later Emperor John I Tzimiskes. 1041 – Michael V, adoptive son of Empress Zoë of Byzantium, is proclaimed emperor of the Eastern Roman Empire.
July 23811 – Byzantine emperor Nikephoros I plunders the Bulgarian capital of Pliska and captures Khan Krum's treasury. 1319 – A Knights Hospitaller fleet scores a crushing victory over an Aydinid fleet off Chios. 1632 – Three hundred colonists bound for New France depart from Dieppe, France. 1677 – Scanian War: Denmark–Norway captures the harbor town of Marstrand from Sweden. 1793 – Kingdom of Prussia re-conquers Mainz from France. 1813 – Sir Thomas Maitland is appointed as the first Governor of Malta, transforming the island from a British protectorate to a de facto colony.
September 171111 – Highest Galician nobility led by Pedro Fróilaz de Traba and the bishop Diego Gelmírez crown Alfonso VII as "King of Galicia". 1176 – The Battle of Myriokephalon is the last attempt by the Byzantine Empire to recover central Anatolia from the Seljuk Turks. 1382 – Louis the Great's daughter, Mary, is crowned "king" of Hungary. 1462 – Thirteen Years' War: A Polish army under Piotr Dunin decisively defeats the Teutonic Order at the Battle of Świecino. 1543 – The first Finnish-language book, the Abckiria by Mikael Agricola, is published in Stockholm.
July 16622 – The Hijrah of Muhammad begins, marking the beginning of the Islamic calendar. 997 – Battle of Spercheios: Bulgarian forces of Tsar Samuel are defeated by a Byzantine army under general Nikephoros Ouranos at the Spercheios River in Greece. 1054 – Three Roman legates break relations between Western and Eastern Christian Churches through the act of placing a Papal bull (of doubtful validity) of Excommunication on the altar of Hagia Sophia during Saturday afternoon divine liturgy.
March 271309 – Pope Clement V imposes excommunication and interdiction on Venice, and a general prohibition of all commercial intercourse with Venice, which had seized Ferrara, a papal fiefdom. 1329 – Pope John XXII issues his In Agro Dominico condemning some writings of Meister Eckhart as heretical. 1513 – Spanish explorer Juan Ponce de León reaches the northern end of The Bahamas on his first voyage to Florida. 1625 – Charles I becomes King of England, Scotland and Ireland as well as claiming the title King of France.
April 27247 – Philip the Arab marks the millennium of Rome with a celebration of the ludi saeculares. 395 – Emperor Arcadius marries Aelia Eudoxia, daughter of the Frankish general Flavius Bauto. She becomes one of the more powerful Roman empresses of Late Antiquity. 711 – Islamic conquest of Hispania: Moorish troops led by Tariq ibn Ziyad land at Gibraltar to begin their invasion of the Iberian Peninsula (Al-Andalus). 1296 – First War of Scottish Independence: John Balliol's Scottish army is defeated by an English army commanded by John de Warenne, 6th Earl of Surrey at the Battle of Dunbar.
December 30534 – The second and final edition of the Code of Justinian comes into effect in the Byzantine Empire. 999 – Battle of Glenmama: The combined forces of Munster and Meath under king Brian Boru inflict a crushing defeat on the allied armies of Leinster and Dublin near Lyons Hill in Ireland. 1066 – Granada massacre: A Muslim mob storms the royal palace in Granada, crucifies Jewish vizier Joseph ibn Naghrela and massacres most of the Jewish population of the city. 1419 – Hundred Years' War: Battle of La Rochelle.
January 9681 – Twelfth Council of Toledo: King Erwig of the Visigoths initiates a council in which he implements diverse measures against the Jews in Spain. 1127 – Jin–Song Wars: Invading Jurchen soldiers from the Jin dynasty besiege and sack Bianjing (Kaifeng), the capital of the Song dynasty of China, and abduct Emperor Qinzong of Song and others, ending the Northern Song dynasty. 1349 – The Jewish population of Basel, believed by the residents to be the cause of the ongoing Black Death, is rounded up and incinerated.
August 121099 – First Crusade: Battle of Ascalon Crusaders under the command of Godfrey of Bouillon defeat Fatimid forces led by Al-Afdal Shahanshah. This is considered the last engagement of the First Crusade. 1121 – Battle of Didgori: The Georgian army under King David IV wins a decisive victory over the famous Seljuk commander Ilghazi. 1164 – Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch.
June 10671 – Emperor Tenji of Japan introduces a water clock (clepsydra) called Rokoku. The instrument, which measures time and indicates hours, is placed in the capital of Ōtsu. 1190 – Third Crusade: Frederick I Barbarossa drowns in the river Saleph while leading an army to Jerusalem. 1329 – The Battle of Pelekanon is the last attempt of the Byzantine Empire to retain its cities in Asia Minor. 1358 – Battle of Mello: The peasant forces of the Jacquerie are crushed by the army of the French nobility.
