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.
September 13585 BC – Lucius Tarquinius Priscus, king of Rome, celebrates a triumph for his victories over the Sabines, and the surrender of Collatia. 509 BC – The Temple of Jupiter Optimus Maximus on Rome's Capitoline Hill is dedicated on the ides of September. 379 – Yax Nuun Ahiin I is crowned as 15th Ajaw of Tikal 533 – Belisarius of the Byzantine Empire defeats Gelimer and the Vandals at the Battle of Ad Decimum, near Carthage, North Africa. 1229 – Ögedei Khan is proclaimed Khagan of the Mongol Empire in Kodoe Aral, Khentii: Mongolia.
April 12240 – Shapur I becomes co-emperor of the Sasanian Empire with his father Ardashir I. 467 – Anthemius is elevated to Emperor of the Western Roman Empire. 627 – King Edwin of Northumbria is converted to Christianity by Paulinus, bishop of York. 1012 – Duke Oldřich of Bohemia deposes and blinds his brother Jaromír, who flees to Poland. 1204 – The Crusaders of the Fourth Crusade breach the walls of Constantinople and enter the city, which they completely occupy the following day.
October 1833 – Heartbroken by the deaths of her sons Nero and Drusus, and banished to the island of Pandateria by Tiberius, Agrippina the Elder dies of self-inflicted starvation. 320 – Pappus of Alexandria, Greek philosopher, observes an eclipse of the Sun and writes a commentary on The Great Astronomer (Almagest). 614 – King Chlothar II promulgates the Edict of Paris (Edictum Chlotacharii), a sort of Frankish Magna Carta that defends the rights of the Frankish nobles while it excludes Jews from all civil employment in the Frankish Kingdom.
1924January 1924 January 12 – Gopinath Saha shoots Ernest Day, whom he has mistaken for Sir Charles Tegart, the police commissioner of Calcutta, and is arrested soon after. January 20–30 – Kuomintang in China holds its first National Congress, initiating a policy of alliance with the Soviet Union and the Chinese Communist Party. January 21 – The Earl of Athlone is appointed Governor-General of the Union of South Africa, and High Commissioner for Southern Africa. January 22 – Ramsay MacDonald becomes the first Labour Prime Minister of the United Kingdom.
OctoberOctober is the tenth month of the year in the Julian and Gregorian calendars and the sixth of seven months to have a length of 31 days. The eighth month in the old calendar of Romulus 750 BC, October retained its name (from Latin and Greek ôctō meaning "eight") after January and February were inserted into the calendar that had originally been created by the Romans. In Ancient Rome, one of three Mundus patet would take place on October 5, Meditrinalia October 11, Augustalia on October 12, October Horse on October 15, and Armilustrium on October 19.
January 1627 BC – Gaius Julius Caesar Octavianus is granted the title Augustus by the Roman Senate, marking the beginning of the Roman Empire. 378 – General Siyaj K'ak' conquers Tikal, enlarging the domain of King Spearthrower Owl of Teotihuacán. 550 – Gothic War: The Ostrogoths, under King Totila, conquer Rome after a long siege, by bribing the Isaurian garrison. 929 – Emir Abd-ar-Rahman III establishes the Caliphate of Córdoba. 1120 – Crusades: The Council of Nablus is held, establishing the earliest surviving written laws of the Crusader Kingdom of Jerusalem.
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.
June 264 – Augustus adopts Tiberius. 221 – Roman emperor Elagabalus adopts his cousin Alexander Severus as his heir and receives the title of Caesar. 363 – Roman emperor Julian is killed during the retreat from the Sasanian Empire. 684 – Pope Benedict II is the last pope to require confirmation by the Byzantine emperor before taking office. 699 – En no Ozuno, a Japanese mystic and apothecary who will later be regarded as the founder of a folk religion Shugendō, is banished to Izu Ōshima.
January 12475 – Byzantine Emperor Zeno is forced to flee his capital at Constantinople, and his general, Basiliscus gains control of the empire. 1528 – Gustav I of Sweden is crowned King of Sweden, having already reigned since his election in June 1523. 1554 – Bayinnaung, who would go on to assemble the largest empire in the history of Southeast Asia, is crowned King of Burma. 1616 – The city of Belém, Brazil is founded on the Amazon River delta, by Portuguese captain Francisco Caldeira Castelo Branco.