February events in history

February 11, 55 Tiberius Claudius Caesar Britannicus, heir to the Roman emperorship, dies under mysterious circumstances in Rome. This clears the way for Nero to become Emperor
February 5, 62 Earthquake in Pompeii, Italy
February 16, 116 Emperor Trajan sends laureatae to the Roman Senate at Rome on account of his victories and being conqueror of Parthia
February 25, 138 The Roman emperor Hadrian adopts Antoninus Pius, effectively making him his successor
February 19, 197 Emperor Septimius Severus defeats usurper Clodius Albinus in the Battle of Lugdunum, the bloodiest battle between Roman armies
February 4, 211 Roman Emperor Septimius Severus dies at Eboracum (modern York, England) while preparing to lead a campaign against the Caledonians. He leaves the empire in the control of his two quarrelling sons
February 11, 244 Emperor Gordian III is murdered by mutinous soldiers in Zaitha (Mesopotamia). A mound is raised at Carchemish in his memory
February 23, 303 Roman Emperor Diocletian orders the destruction of the Christian church in Nicomedia, beginning eight years of Diocletianic Persecution
February 24, 303 Galerius publishes his edict that begins the persecution of Christians in his portion of the Roman Empire
February 19, 356 Emperor Constantius II issues a decree closing all pagan temples in the Roman Empire
February 21, 362 Athanasius returns to Alexandria
February 17, 364 Emperor Jovian dies after a reign of eight months. He is found dead in his tent at Tyana (Asia Minor) en route back to Constantinople in suspicious circumstances
February 26, 364 Valentinian I is proclaimed Roman Emperor
February 27, 380 Edict of Thessalonica: Emperor Theodosius I, with co-emperors Gratian and Valentinian II, declare their wish that all Roman citizens convert to trinitarian Christianity
February 8, 421 Constantius III becomes co-Emperor of the Western Roman Empire
February 27, 425 The University of Constantinople is founded by Emperor Theodosius II at the urging of his wife Aelia Eudocia
February 7, 457 Leo I becomes emperor of the Byzantine Empire
February 9, 474 Zeno crowned as co-emperor of the Byzantine Empire
February 1, 481 Vandal king Huneric organises a conference between Catholic and Arian bishops at Carthage
February 24, 484 King Huneric removes the Christian bishops from their offices and banished some to Corsica. A few are martyred, including former proconsul Victorian along with Frumentius and other merchants. They are killed at Hadrumetum after refusing to become Arians
February 25, 493 Odoacer surrenders Ravenna after a 3-year siege and agrees to a mediated peace with Theodoric the Great
February 2, 506 Alaric II, eighth king of the Visigoths promulgates the Breviary of Alaric (Breviarium Alaricianum or Lex Romana Visigothorum), a collection of "Roman law"
February 23, 532 Byzantine Emperor Justinian I orders the building of a new Orthodox Christian basilica in Constantinople – the Hagia Sophia
February 15, 590 Khosrau II is crowned king of Persia
February 25, 628 Khosrau II is overthrown by his son Kavadh II
February 28, 628 Khosrau II is executed by Mihr Hormozd under the orders of Kavadh II
February 4, 634 Battle of Dathin: Rashidun forces under Yazid ibn Abi Sufyan defeat the Christian Arabs around Gaza (Palestine)
February 22, 705 Empress Wu Zetian abdicates the throne, restoring the Tang Dynasty
February 15, 706 Byzantine emperor Justinian II has his predecessors Leontios and Tiberios III publicly executed in the Hippodrome of Constantinople
February 14, 748 Abbasid Revolution: The Hashimi rebels under Abu Muslim Khorasani take Merv, capital of the Umayyad province Khorasan, marking the consolidation of the Abbasid revolt
February 5, 756 An Lushan, leader of a revolt against the Tang Dynasty, declares himself emperor and establishes the state of Yan
February 14, 842 Charles the Bald and Louis the German swear the Oaths of Strasbourg in the French and German languages
February 2, 865 The Battle of the Morcuera took place in the context of the Spanish Reconquista. The battle took place at Hoz de la Morcuera near Miranda de Ebro. The battle pitted the Christian forces of Castile and Asturias under Rodrigo of Castile against the forces of the Emirate of Córdoba under Muhammad I of Córdoba resulting in a decisive Cordoban victory
February 28, 870 The Fourth Council of Constantinople closes
February 12, 881 Pope John VIII crowns Charles the Fat, the King of Italy: Holy Roman Emperor
February 27, 907 Abaoji, a Khitan chieftain, is enthroned as Emperor Taizu, establishing the Liao Dynasty in northern China
February 4, 960 The coronation of Zhao Kuangyin as Emperor Taizu of Song, initiating the Song Dynasty period of China that would last more than three centuries
February 2, 962 Translatio imperii: Pope John XII crowns Otto I, Holy Roman Emperor, the first Holy Roman Emperor in nearly 40 years
February 14, 1014 Pope Benedict VIII crowns Henry of Bavaria, King of Germany and of Italy, as Holy Roman Emperor
February 2, 1032 Conrad II, Holy Roman Emperor becomes King of Burgundy
February 7, 1074 Pandulf IV of Benevento is killed battling the invading Normans at the Battle of Montesarchio
February 14, 1076 Pope Gregory VII excommunicates Henry IV, Holy Roman Emperor
February 3, 1112 Ramon Berenguer III of Barcelona and Douce I of Provence marry, uniting the fortunes of those two states
February 15, 1113 Pope Paschal II issues a bill sanctioning the establishment of the Order of Hospitallers
February 2, 1141 The Battle of Lincoln, at which King Stephen was defeated and captured by the allies of Empress Matilda, presenting her with the unfulfilled opportunity to become the first queen of medieval England
February 4, 1169 A strong earthquake struck the Ionian coast of Sicily, causing tens of thousands of injuries and deaths, especially in Catania
February 11, 1177 John de Courcy's army defeats the native Dunleavey Clan in Ulster. The English establish themselves in Ulster
February 2, 1207 Terra Mariana, comprising present-day Estonia and Latvia, is established
February 18, 1229 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
February 26, 1233 Mongol–Jin War: The Mongols capture Kaifeng, the capital of the Jin dynasty, after besieging it for months