June 9411 BC – The Athenian coup succeeds, forming a short-lived oligarchy. 53 – The Roman emperor Nero marries Claudia Octavia. 68 – Nero dies by suicide after quoting Vergil's Aeneid, thus ending the Julio-Claudian dynasty and starting the civil war known as the Year of the Four Emperors. 721 – Odo of Aquitaine defeats the Moors in the Battle of Toulouse. 747 – Abbasid Revolution: Abu Muslim Khorasani begins an open revolt against Umayyad rule, which is carried out under the sign of the Black Standard.
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.
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.
December 9536 – Gothic War: The Byzantine general Belisarius enters Rome unopposed; the Gothic garrison flees the capital. 730 – Battle of Marj Ardabil: The Khazars annihilate an Umayyad army and kill its commander, al-Jarrah ibn Abdallah al-Hakami. 1432 – The first battle between the forces of Švitrigaila and Sigismund Kęstutaitis is fought near the town of Oszmiana (Ashmyany), launching the most active phase of the Lithuanian Civil War. 1531 – The Virgin of Guadalupe first appears to Juan Diego at Tepeyac, Mexico City.
September 21455 – Emperor Avitus enters Rome with a Gallic army and consolidates his power. 1170 – The Kingdom of Dublin falls to Norman invaders. 1217 – Livonian Crusade: The Estonian leader Lembitu and Livonian leader Kaupo the Accursed are killed in the Battle of St. Matthew's Day. 1435 – The Congress of Arras causes Burgundy to switch sides in the Hundred Years' War. 1745 – A Hanoverian army is defeated, in ten minutes, by the Jacobite forces of Prince Charles Edward Stuart 1776 – Part of New York City is burned shortly after being occupied by British forces.
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.
March 4AD 51 – Nero, later to become Roman emperor, is given the title princeps iuventutis (head of the youth). 306 – Martyrdom of Saint Adrian of Nicomedia. 852 – Croatian Knez Trpimir I issues a statute, a document with the first known written mention of the Croats name in Croatian sources. 938 – Translation of the relics of martyr Wenceslaus I, Duke of Bohemia, Prince of the Czechs. 1152 – Frederick I Barbarossa is elected King of Germany. 1238 – The Battle of the Sit River begins two centuries of Mongol horde domination of Russia.
October 201568 – The Spanish Duke of Alba defeats a Dutch rebel force under William the Silent. 1572 – Eighty Years' War: Three thousand Spanish soldiers wade through fifteen miles of water in one night to effect the relief of Goes. 1740 – France, Prussia, Bavaria and Saxony refuse to honour the Pragmatic Sanction, and the War of the Austrian Succession begins. 1774 – American Revolution: The Continental Association, a nonconsumption and nonimportation agreement against the British Isles and the British West Indies, is adopted by the First Continental Congress.
August 2338 BC – A Macedonian army led by Philip II defeated the combined forces of Athens and Thebes in the Battle of Chaeronea, securing Macedonian hegemony in Greece and the Aegean. 216 BC – The Carthaginian army led by Hannibal defeats a numerically superior Roman army at the Battle of Cannae. 49 BC – Caesar, who marched to Spain earlier in the year leaving Marcus Antonius in charge of Italy, defeats Pompey's general Afranius and Petreius in Ilerda (Lerida) north of the Ebro river.
May 3070 – Siege of Jerusalem: Titus and his Roman legions breach the Second Wall of Jerusalem. Jewish defenders retreat to the First Wall. The Romans build a circumvallation, cutting down all trees within . 1381 – Beginning of the Peasants' Revolt in England. 1416 – The Council of Constance, called by Emperor Sigismund, a supporter of Antipope John XXIII, burns Jerome of Prague following a trial for heresy. 1431 – Hundred Years' War: In Rouen, France, the 19-year-old Joan of Arc is burned at the stake by an English-dominated tribunal.
