December events in history

December 20, 69 Vespasian, formerly a general under Nero, enters Rome to claim the title of Emperor
December 21, 69 The Roman Senate declares Vespasian as Roman emperor, the last in the Year of the Four Emperors
December 22, 69 Emperor Vitellius is captured and murdered at the Gemonian stairs in Rome
December 19, 211 Publius Septimius Geta, co-emperor of Rome, is lured to come without his bodyguards to meet his brother Marcus Aurelius Antoninus (Caracalla), to discuss a possible reconciliation. When he arrives, the Praetorian Guard murders him and he dies in the arms of his mother, Julia Domna
December 20, 217 The papacy of Zephyrinus ends. Callixtus I is elected as the sixteenth pope, but is opposed by the theologian Hippolytus who accuses him of laxity and of being a Modalist, one who denies any distinction between the three persons of the Trinity
December 11, 220 Cao Pi forces Emperor Xian of Han to abdicate the Han Dynasty throne. The Cao Wei empire is established. The Three Kingdoms period begins
December 25, 333 Roman Emperor Constantine the Great elevates his youngest son Constans to the rank of Caesar
December 25, 336 First documentary sign of Christmas celebration in ancient Rome
December 25, 350 Vetranio meets Constantius II at Naissus (Serbia) and is forced to abdicate his title (Caesar). Constantius allows him to live as a private citizen on a state pension
December 11, 361 Julian the Apostate enters Constantinople as sole Emperor of the Roman Empire
December 8, 395 Later Yan is defeated by its former vassal Northern Wei at the Battle of Canhe Slope
December 31, 406 Vandals, Alans and Suebians cross the Rhine, beginning an invasion of Gaul
December 28, 457 Majorian is acclaimed emperor of the Western Roman Empire and recognized by emperor Leo I the Thracian
December 9, 480 Odoacer, first King of Italy, occupies Dalmatia. He later establishes his political power with the co-operation of the Roman Senate
December 23, 484 Huneric dies and is succeeded by his nephew Gunthamund, who becomes king of the Vandals. During his reign the Catholics are free from persecutions
December 28, 484 Alaric II succeeds his father Euric and becomes king of the Visigoths. He establishes his capital at Aire-sur-l'Adour (Southern Gaul)
December 25, 496 Clovis I, king of the Franks, is baptized into the Catholic faith at Reims, by Saint Remigius
December 15, 533 Vandalic War: Byzantine general Belisarius defeats the Vandals, commanded by King Gelimer, at the Battle of Tricamarum
December 31, 535 Byzantine general Belisarius completes the conquest of Sicily, defeating the Gothic garrison of Palermo (Panormos), and ending his consulship for the year
December 9, 536 Gothic War: The Byzantine general Belisarius enters Rome unopposed; the Gothic garrison flee the capital
December 27, 537 The Hagia Sophia is completed
December 17, 546 Siege of Rome: The Ostrogoths under king Totila plunder the city, by bribing the Byzantine garrison
December 14, 557 Constantinople is severely damaged by an earthquake
December 23, 558 Chlothar I is crowned King of the Franks
December 23, 562 Hagia Sophia in Constantinople reopened with a rebuilt dome after a series of earthquakes caused the original to collapse
December 7, 574 Emperor Justin II retires due to recurring seizures of insanity. He abdicates the throne in favor of his general Tiberius, proclaiming him Caesar
December 23, 583 Maya queen Yohl Ik'nal is crowned ruler of Palenque
December 25, 597 Augustine of Canterbury and his fellow-labourers baptise in Kent more than 10,000 Anglo-Saxons
December 12, 627 Battle of Nineveh: A Byzantine army under Emperor Heraclius defeats Emperor Khosrau II's Persian forces, commanded by General Rhahzadh
December 11, 630 Muhammad leads an army of 10,000 to conquer Mecca
December 5, 633 Fourth Council of Toledo takes place
December 24, 640 Pope John IV is elected
December 23, 679 King Dagobert II is murdered while hunting
December 15, 687 Pope Sergius I is elected
December 16, 714 Pepin of Herstal, mayor of the Merovingian palace, dies at Jupille (modern Belgium). He is succeeded by his infant grandson Theudoald while his wife Plectrude holds actual power in the Frankish Kingdom
December 9, 730 Battle of Marj Ardabil: The Khazars annihilate an Umayyad army and kill its commander, al-Jarrah ibn Abdallah al-Hakami
December 16, 755 An Lushan revolts against Chancellor Yang Guozhong at Yanjing, initiating the An Lushan Rebellion during the Tang Dynasty of China
December 8, 757 Du Fu returns to Chang'an as a member of Emperor Xuanzong's court, after having escaped the city during the An Lushan Rebellion
December 24, 759 Tang Dynasty poet Du Fu departs for Chengdu, where he is hosted by fellow poet Pei Di
December 4, 771 Austrasian king Carloman I dies, leaving his brother Charlemagne king of the now complete Frankish Kingdom
December 1, 800 Charlemagne judges the accusations against Pope Leo III in the Vatican
December 25, 800 Coronation of Charlemagne as Holy Roman Emperor, in Rome
December 14, 835 Sweet Dew Incident: Emperor Wenzong of the Tang Dynasty conspires to kill the powerful eunuchs of the Tang court, but the plot is foiled
December 22, 880 Luoyang, eastern capital of the Tang Dynasty, is captured by rebel leader Huang Chao during the reign of Emperor Xizong
December 28, 893 An earthquake destroys the city of Dvin, Armenia
December 3, 915 Pope John X crowned Berengar I of Italy as Holy Roman Emperor
December 17, 920 Romanos I Lekapenos is crowned co-emperor of the underage Constantine VII
December 17, 942 Assassination of William I of Normandy
December 23, 962 Arab–Byzantine wars: Under the future Emperor Nicephorus Phocas, Byzantine troops storm the city of Aleppo
December 11, 969 Byzantine Emperor Nikephoros II Phokas is assassinated by his wife Theophano and her lover, the later Emperor John I Tzimiskes