March 26590 – Emperor Maurice proclaims his son Theodosius as co-emperor of the Byzantine Empire. 1021 – The death of the Fatimid caliph al-Hakim bi-Amr Allah, kept secret for six weeks, is announced, along with the succession of his son, al-Zahir li-i'zaz Din Allah. 1027 – Pope John XIX crowns Conrad II as Holy Roman Emperor. 1169 – Saladin becomes the emir of Egypt. 1344 – The Siege of Algeciras, one of the first European military engagements where gunpowder was used, comes to an end.
June 2455 – Sack of Rome: Vandals enter Rome, and plunder the city for two weeks. 1098 – First Crusade: The first Siege of Antioch ends as Crusader forces take the city; the second siege began five days later. 1608 – The Colony of Virginia gets a charter, extending borders from "sea to sea". 1615 – The first Récollet missionaries arrive at Quebec City, from Rouen, France. 1676 – Franco-Dutch War: France ensured the supremacy of its naval fleet for the remainder of the war with its victory in the Battle of Palermo.
January 23393 – Roman emperor Theodosius I proclaims his eight-year-old son Honorius co-emperor. 971 – Using crossbows, Song dynasty troops soundly defeat a war elephant corps of the Southern Han at Shao. 1264 – In the conflict between King Henry III of England and his rebellious barons led by Simon de Montfort, King Louis IX of France issues the Mise of Amiens, a one-sided decision in favour of Henry that later leads to the Second Barons' War.
January 20250 – Pope Fabian is martyred during the Decian persecution. 649 – King Chindasuinth, at the urging of bishop Braulio of Zaragoza, crowns his son Recceswinth as co-ruler of the Visigothic Kingdom. 1156 – Finnish peasant Lalli kills English clergyman Henry, the Bishop of Turku, on the ice of Lake Köyliö. 1265 – The first English parliament to include not only Lords but also representatives of the major towns holds its first meeting in the Palace of Westminster, now commonly known as the "Houses of Parliament".
March 231400 – The Trần dynasty of Vietnam is deposed, after one hundred and seventy-five years of rule, by Hồ Quý Ly, a court official. 1540 – Waltham Abbey is surrendered to King Henry VIII of England; the last religious community to be closed during the Dissolution of the Monasteries. 1568 – The Peace of Longjumeau is signed, ending the second phase of the French Wars of Religion. 1775 – American Revolutionary War: Patrick Henry delivers his speech – "Give me liberty, or give me death!" – at St.
October 17690 – Empress Wu Zetian establishes the Zhou Dynasty of China. 1091 – London tornado of 1091: A tornado thought to be of strength T8/F4 strikes the heart of London. 1346 – The English capture King David II of Scotland at Neville's Cross and imprison him for eleven years. 1448 – An Ottoman army defeats a Hungarian army at the Second Battle of Kosovo. 1456 – The University of Greifswald is established as the second oldest university in northern Europe. 1534 – Anti-Catholic posters appear in Paris and other cities supporting Huldrych Zwingli's position on the Mass.
April 18796 – King Æthelred I of Northumbria is murdered in Corbridge by a group led by his ealdormen, Ealdred and Wada. The patrician Osbald is crowned, but abdicates within 27 days. 1428 – Peace of Ferrara between Republic of Venice, Duchy of Milan, Republic of Florence and House of Gonzaga: ending of the second campaign of the Wars in Lombardy fought until the Treaty of Lodi in 1454, which will then guarantee the conditions for the development of the Italian Renaissance. 1506 – The cornerstone of the current St.
November 24380 – Theodosius I makes his adventus, or formal entry, into Constantinople. 1190 – Conrad of Montferrat becomes King of Jerusalem upon his marriage to Isabella I of Jerusalem. 1221 – Genghis Khan defeats the renegade Khwarazmian prince Jalal al-Din at the Battle of the Indus, completing the Mongol conquest of Central Asia. 1227 – Gąsawa massacre: At an assembly of Piast dukes at Gąsawa, Polish Prince Leszek the White, Duke Henry the Bearded and others are attacked by assassins while bathing.
October 16456 – Ricimer defeats Avitus at Piacenza and becomes master of the Western Roman Empire. 690 – Empress Wu Zetian ascends to the throne of the Tang dynasty and proclaims herself ruler of the Chinese Empire. 912 – Abd ar-Rahman III becomes the eighth Emir of Córdoba. 955 – King Otto I defeats a Slavic revolt in what is now Mecklenburg-Vorpommern. 1311 – The Council of Vienne convenes for the first time. 1384 – Jadwiga is crowned King of Poland, although she is a woman. 1590 – Prince Gesualdo of Venosa murders his wife and her lover.
July 2070 – Siege of Jerusalem: Titus, son of emperor Vespasian, storms the Fortress of Antonia north of the Temple Mount. The Roman army is drawn into street fights with the Zealots. 792 – Kardam of Bulgaria defeats Byzantine Emperor Constantine VI at the Battle of Marcellae. 911 – Rollo lays siege to Chartres. 1189 – Richard I of England officially invested as Duke of Normandy. 1225 – Treaty of San Germano is signed at San Germano between Holy Roman Emperor Frederick II and Pope Gregory IX.
