April 9193 – The distinguished soldier Septimius Severus is proclaimed emperor by the army in Illyricum. 475 – Byzantine Emperor Basiliscus issues a circular letter (Enkyklikon) to the bishops of his empire, supporting the Monophysite christological position. 537 – Siege of Rome: The Byzantine general Belisarius receives his promised reinforcements, 1,600 cavalry, mostly of Hunnic or Slavic origin and expert bowmen. He starts, despite shortages, raids against the Gothic camps and Vitiges is forced into a stalemate.
December 20AD 69 – Antonius Primus enters Rome to claim the title of Emperor for Nero's former general Vespasian. 1192 – Richard I of England is captured and imprisoned by Leopold V of Austria on his way home to England after the Third Crusade. 1334 – Cardinal Jacques Fournier, a Cistercian monk, is elected Pope Benedict XII. 1803 – The Louisiana Purchase is completed at a ceremony in New Orleans. 1808 – Peninsular War: The Siege of Zaragoza begins. 1832 – HMS Clio under the command of Captain Onslow arrives at Port Egmont under orders to take possession of the Falkland Islands.
August 130 BC – Octavian (later known as Augustus) enters Alexandria, Egypt, bringing it under the control of the Roman Republic. AD 69 – Batavian rebellion: The Batavians in Germania Inferior (Netherlands) revolt under the leadership of Gaius Julius Civilis. 527 – Justinian I becomes the sole ruler of the Byzantine Empire. 607 – Ono no Imoko is dispatched as envoy to the Sui court in China (Traditional Japanese date: July 3, 607). 902 – Taormina, the last Byzantine stronghold in Sicily, is captured by the Aghlabid army, concluding the Muslim conquest of Sicily.
December 27537 – The second Hagia Sophia in Constantinople is consecrated. 1512 – The Spanish Crown issues the Laws of Burgos, governing the conduct of settlers with regard to native Indians in the New World. 1521 – The Zwickau prophets arrive in Wittenberg, disturbing the peace and preaching the Apocalypse. 1655 – Second Northern War/the Deluge: Monks at the Jasna Góra Monastery in Częstochowa are successful in fending off a month-long siege. 1657 – The Flushing Remonstrance articulates for the first time in North American history that freedom of religion is a fundamental right.
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.
October 31475 – Romulus Augustulus is proclaimed Western Roman Emperor. 683 – During the Siege of Mecca, the Kaaba catches fire and is burned down. 802 – Empress Irene is deposed and banished to Lesbos. Conspirators place Nikephoros, the minister of finance, on the Byzantine throne. 932 – Abbasid caliph al-Muqtadir is killed while fighting against the forces of general Mu'nis al-Muzaffar. Al-Muqtadir's brother al-Qahir is chosen to succeed him. 1517 – Protestant Reformation: Martin Luther posts his 95 Theses on the door of the Castle Church in Wittenberg.
April 171080 – Harald III of Denmark dies and is succeeded by Canute IV, who would later be the first Dane to be canonized. 1349 – The rule of the Bavand dynasty in Mazandaran is brought to an end by the murder of Hasan II. 1362 – Kaunas Castle falls to the Teutonic Order after a month-long siege. 1492 – Spain and Christopher Columbus sign the Capitulations of Santa Fe for his voyage to Asia to acquire spices. 1521 – Trial of Martin Luther over his teachings begins during the assembly of the Diet of Worms.
June 6913 – Constantine VII, the eight-year-old illegitimate son of Leo VI the Wise, becomes nominal ruler of the Byzantine Empire under the regency of a seven-man council headed by Patriarch Nicholas Mystikos, appointed by Constantine's uncle Alexander on his deathbed. 1505 – The M8.2–8.8 Lo Mustang earthquake affects Tibet and Nepal, causing severe damage in Kathmandu and parts of the Indo-Gangetic plain. 1513 – Battle of Novara. In the Italian Wars, Swiss troops defeat the French under Louis II de la Trémoille, forcing them to abandon Milan; Duke Massimiliano Sforza is restored.
July 281364 – Troops of the Republic of Pisa and the Republic of Florence clash in the Battle of Cascina. 1540 – Henry VIII of England marries his fifth wife, Catherine Howard. 1571 – La Laguna encomienda, known today as the Laguna province in the Philippines, is founded by the Spaniards as one of the oldest encomiendas (provinces) in the country. 1635 – In the Eighty Years' War, the Spanish capture the strategic Dutch fortress of Schenkenschans. 1656 – Second Northern War: Battle of Warsaw begins.
July 22838 – Battle of Anzen: The Byzantine emperor Theophilos suffers a heavy defeat by the Abbasids. 1099 – First Crusade: Godfrey of Bouillon is elected the first Defender of the Holy Sepulchre of The Kingdom of Jerusalem. 1209 – Massacre at Béziers: The first major military action of the Albigensian Crusade. 1298 – Wars of Scottish Independence: Battle of Falkirk: King Edward I of England and his longbowmen defeat William Wallace and his Scottish schiltrons outside the town of Falkirk. 1342 – St.
