November 18326 – The old St. Peter's Basilica is consecrated by Pope Sylvester I. 401 – The Visigoths, led by king Alaric I, cross the Alps and invade northern Italy. 1095 – The Council of Clermont begins: called by Pope Urban II, it led to the First Crusade to the Holy Land. 1105 – Maginulfo is elected Antipope Sylvester IV in opposition to Pope Paschal II. 1210 – Pope Innocent III excommunicates Holy Roman Emperor Otto IV for invading the Kingdom of Sicily after promising to recognize papal control over it.
November 26783 – The Asturian queen Adosinda is held at a monastery to prevent her king from retaking the throne from Mauregatus. 1161 – Battle of Caishi: A Song dynasty fleet fights a naval engagement with Jin dynasty ships on the Yangtze river during the Jin–Song Wars. 1476 – Vlad the Impaler defeats Basarab Laiota with the help of Stephen the Great and Stephen V Báthory and becomes the ruler of Wallachia for the third time. 1778 – In the Hawaiian Islands, Captain James Cook becomes the first European to visit Maui.
April 5823 – Lothair I is crowned King of Italy by Pope Paschal I. 919 – The second Fatimid invasion of Egypt begins, when the Fatimid heir-apparent, al-Qa'im bi-Amr Allah, sets out from Raqqada at the head of his army. 1242 – During the Battle on the Ice of Lake Peipus, Russian forces, led by Alexander Nevsky, rebuff an invasion attempt by the Teutonic Knights. 1536 – Charles V makes a Royal Entry into Rome, demolishing a swath of the city to re-enact a Roman triumph.
October 25285 or 286 – Execution of Saints Crispin and Crispinian during the reign of Diocletian, now the patron saints of leather workers, curriers, and shoemakers. 473 – Emperor Leo I acclaims his grandson Leo II as Caesar of the East Roman Empire. 1147 – Seljuk Turks defeat German crusaders under Conrad III at the Battle of Dorylaeum. 1147 – Reconquista: After a siege of four months, crusader knights reconquer Lisbon. 1415 – Hundred Years' War: Henry V of England, with his lightly armoured infantry and archers, defeats the heavily armoured French cavalry in the Battle of Agincourt.
October 24AD 69 – In the Second Battle of Bedriacum, troops loyal to Vespasian defeat those of Emperor Vitellius. 1260 – Chartres Cathedral is dedicated in the presence of King Louis IX of France. 1360 – The Treaty of Brétigny is ratified, marking the end of the first phase of the Hundred Years' War. 1590 – John White, the governor of the second Roanoke Colony, returns to England after an unsuccessful search for the "lost" colonists. 1596 – The second Spanish armada sets sail to strike against England, but is smashed by storms off Cape Finisterre forcing a retreat to port.
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.
SeptemberSeptember is the ninth month of the year in both the Julian and Gregorian calendars, the third of four months to have a length of 30 days, and the fourth of five months to have a length of fewer than 31 days. September in the Northern Hemisphere and March in the Southern Hemisphere are seasonally equivalent. In the Northern hemisphere, the beginning of the meteorological autumn is on 1 September. In the Southern hemisphere, the beginning of the meteorological spring is on 1 September.
September 10506 – The bishops of Visigothic Gaul meet in the Council of Agde. 1419 – John the Fearless, Duke of Burgundy is assassinated by adherents of the Dauphin, the future Charles VII of France. 1509 – An earthquake known as "The Lesser Judgment Day" hits Constantinople. 1515 – Thomas Wolsey is invested as a Cardinal. 1547 – The Battle of Pinkie, the last full-scale military confrontation between England and Scotland, resulting in a decisive victory for the forces of Edward VI.
September 1896 – Domitian, who has been conducting a reign of terror for the past three years, is assassinated as a result of a plot by his wife Domitia and two Praetorian prefects. 96 – Nerva is proclaimed Roman emperor after Domitian is assassinated. 324 – Constantine the Great decisively defeats Licinius in the Battle of Chrysopolis, establishing Constantine's sole control over the Roman Empire. 1048 – Battle of Kapetron between a combined Byzantine-Georgian army and a Seljuq army.
1942The Uppsala Conflict Data Program project estimates this to be the deadliest year in human history in these terms of conflict deaths, placing the death toll at 4.62 million. However, the Correlates of War estimates that the prior year, 1941, was the deadliest such year. Death toll estimates for both 1941 and 1942 range from 2.28 to 7.71 million each. Below, the events of World War II have the "WWII" prefix.
