February 13962 – Emperor Otto I and Pope John XII co-sign the Diploma Ottonianum, recognizing John as ruler of Rome. 1322 – The central tower of Ely Cathedral falls on the night of 12th–13th. 1462 – The Treaty of Westminster is finalised between Edward IV of England and the Scottish Lord of the Isles. 1503 – Challenge of Barletta: Tournament between 13 Italian and 13 French knights near Barletta. 1542 – Catherine Howard, the fifth wife of Henry VIII of England, is executed for adultery.
February 27380 – Edict of Thessalonica: Emperor Theodosius I and his co-emperors Gratian and Valentinian II declare their wish that all Roman citizens convert to Nicene Christianity. 425 – The University of Constantinople is founded by Emperor Theodosius II at the urging of his wife Aelia Eudocia. 907 – Abaoji, chieftain of the Yila tribe, is named khagan of the Khitans. 1560 – The Treaty of Berwick is signed by England and the Lords of the Congregation of Scotland, establishing the terms under which English armed forces were to be permitted in Scotland in order to expel occupying French troops.
February 31112 – Ramon Berenguer III, Count of Barcelona, and Douce I, Countess of Provence, marry, uniting the fortunes of those two states. 1451 – Sultan Mehmed II inherits the throne of the Ottoman Empire. 1488 – Bartolomeu Dias of Portugal lands in Mossel Bay after rounding the Cape of Good Hope, becoming the first known European to travel so far south. 1509 – The Portuguese navy defeats a joint fleet of the Ottoman Empire, the Republic of Venice, the Sultan of Gujarat, the Mamlûk Burji Sultanate of Egypt, the Zamorin of Calicut, and the Republic of Ragusa at the Battle of Diu in Diu, India.
February 9474 – Zeno is crowned as co-emperor of the Byzantine Empire. 1003 – Boleslaus III is restored to authority with armed support from Bolesław I the Brave of Poland. 1098 – The army of the First Crusade under the leadership of Bohemond of Taranto wins a battle against Seljuq emir Ridwan of Aleppo during the siege of Antioch 1539 – The first recorded race is held on Chester Racecourse, known as the Roodee. 1555 – Bishop of Gloucester John Hooper is burned at the stake. 1621 – Gregory XV becomes Pope, the last Pope elected by acclamation.
February 181229 – The Sixth Crusade: Frederick II, Holy Roman Emperor, signs a ten-year truce with al-Kamil, regaining Jerusalem, Nazareth, and Bethlehem with neither military engagements nor support from the papacy. 1268 – The Battle of Wesenberg is fought between the Livonian Order and Dovmont of Pskov. 1332 – Amda Seyon I, Emperor of Ethiopia begins his campaigns in the southern Muslim provinces. 1478 – George, Duke of Clarence, convicted of treason against his older brother Edward IV of England, is executed in private at the Tower of London.
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.
August 15636 – Arab–Byzantine wars: The Battle of Yarmouk between the Byzantine Empire and the Rashidun Caliphate begins. 717 – Arab–Byzantine wars: Maslama ibn Abd al-Malik begins the Second Arab Siege of Constantinople, which will last for nearly a year. 718 – Arab–Byzantine wars: Raising of the Second Arab Siege of Constantinople. 747 – Carloman, mayor of the palace of Austrasia, renounces his position as majordomo and retires to a monastery near Rome. His brother, Pepin the Short, becomes the sole ruler (de facto) of the Frankish Kingdom.
August 17310 – Pope Eusebius dies, possibly from a hunger strike, shortly after being banished by the Emperor Maxentius to Sicily. 682 – Pope Leo II begins his pontificate. 986 – Byzantine–Bulgarian wars: Battle of the Gates of Trajan: The Bulgarians under the Comitopuli Samuel and Aron defeat the Byzantine forces at the Gate of Trajan, with Byzantine Emperor Basil II barely escaping. 1186 – Georgenberg Pact: Ottokar IV, Duke of Styria and Leopold V, Duke of Austria sign a heritage agreement in which Ottokar gives his duchy to Leopold and to his son Frederick under the stipulation that Austria and Styria would henceforth remain undivided.
August 2519 – The Roman general Germanicus dies near Antioch. He was convinced that the mysterious illness that ended in his death was a result of poisoning by the Syrian governor Gnaeus Calpurnius Piso, whom he had ordered to leave the province. 766 – Emperor Constantine V humiliates nineteen high-ranking officials, after discovering a plot against him. He executes the leaders, Constantine Podopagouros and his brother Strategios. 1248 – The Dutch city of Ommen receives city rights and fortification rights from Otto III, the Archbishop of Utrecht.
January 1January 1 or 1 January is the first day of the year in the Gregorian Calendar. There are 364 days remaining until the end of the year (365 in leap years). This day is also known as New Year's Day since the day marks the beginning of the year. TOC 153 BC – For the first time, Roman consuls begin their year in office on January 1. 45 BC – The Julian calendar takes effect as the civil calendar of the Roman Empire, establishing January 1 as the new date of the new year. 42 BC – The Roman Senate posthumously deifies Julius Caesar.
