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The 770s

185 sourced entries across 10 years, inside the 8th century. Each year below opens its own page; the lines under it are that year’s highest-ranked entries.

770 CE19 entries

  • August 28 – Empress Kōken (also Shōtoku) of Japan dies.
  • Caliph al-Mansur orders the closing of the Canal of the Pharaohs (Egypt). The only remaining land routes to transship camel caravans' goods are from Alexandria to ports on the Red Sea, or the northern Byzantine termini of the Silk Road.
  • King Alhred of Northumbria takes an interest in continental missionary activities, and sends Willehad to Frisia in modern-day Netherlands (approximate date).

771 CE11 entries

  • January 24 – Kʼakʼ Tiliw Chan Yopaat dedicates a 65-ton stele, the largest stone known to be quarried by the Maya civilization, at his city of Quiriguá.
  • December 4 – King Carloman I, youngest son of Pepin III ("the Short"), dies (of a severe nosebleed, according to one source) at the Villa of Samoussy, leaving his brother Charlemagne sole ruler of the now reunified Frankish Kingdom. Gerberga, the widow of Carloman, flees with her two sons to the court of King Desiderius of the Lombards, at Pavia.
  • King Offa of Mercia defeats the Haestingas, and joins their little region to his sub-kingdom of Sussex.

772 CE16 entries

  • January 24 – Pope Stephen III dies after a 3½-year reign, in which he has approved the acceptable reverence of icons in the Eastern Church. On February 1 he is succeeded by Adrian I (also referred to as Hadrian) as the 95th pope of Rome.
  • King Desiderius of the Lombards, enraged by the repudiation by Charlemagne of his daughter Desiderata, proclaims Gerberga's sons lawful heirs to the Frankish throne. He attacks Pope Adrian I for refusing to crown them, and invades the Duchy of the Pentapolis. Desiderius marches on Rome, and Adrian turns to the Franks for military support.
  • Saxon Wars: King Charlemagne leads a Frankish expedition from the Middle Rhine into disputed territory lost by the Franks in 695. He starts a campaign against the Saxons and seizes Eresburg, destroying the Irminsul (Saxon sacred tree) near Paderborn. Charlemagne devastates several major Saxon strongholds, and forces them to retreat beyond the Weser River. After negotiating with some Saxon nobles and obtaining hostages, he installs a number of garrisons.

773 CE21 entries

  • A large and sudden increase in radiocarbon ( 14 C) occurs around 773, in coral skeletons from the South China Sea (see 774-775 carbon-14 spike).
  • The number 0 is introduced to the city of Baghdad, which will be developed in the Middle East by Arabian mathematicians, who will base their numbers on the Indian system (long after the Maya culture developed the concept, cf. Maya numerals).
  • King Khongtekcha of Manipur (modern India) dies after a 10-year reign; during his rule the Meitei language script first appears.

774 CE18 entries

  • June – King Desiderius surrenders the independence of the Lombards to the Franks, and is exiled to Corbie Abbey (Picardy). Charlemagne annexes northern Italy as a sub-kingdom, and takes the title of Rex Langobardorum. Some Lombards flee south to Benevento, which remains independent; Duke Arechis II retitles himself "Prince of Benevento".
  • King Charlemagne conquers the Lombard Kingdom, and establishes Frankish rule in Pavia, Venetia, Istria, Emilia, Tuscany, and Corsica. Charlemagne visits Rome; he confirms the Donation of Pepin (see 756) while insisting on his own sovereignty. Pope Adrian I grants him the title of patrician. Charlemagne puts down immediate insurrections in Friuli.
  • A 1.2% growth of concentration recorded in tree rings, along with corresponding spikes of and recorded in ice cores, suggests that a very strong solar storm may have hit Earth in either 774 or 775.

775 CE31 entries

  • April 25 – Battle of Bagrevand: The Abbasids put an end to an Armenian rebellion. Muslim control over Transcaucasia is solidified, while several major Armenian nakharar families, notably the Mamikonian, lose power and flee to the Byzantine Empire.
  • September 14 – Emperor Constantine V dies while on a campaign in Bulgaria. In his 34-year reign he has suppressed monasticism and image worship, restored aqueducts, revived commerce, and repopulated Constantinople. He is succeeded by his 25-year-old son Leo IV ("the Khazar"), who continues Constantine's campaigns against the Bulgars and Muslim Arabs.
  • Caliph al-Mansur (r. 754–775) dies after a 21-year reign, in which he has made Baghdad the residence of the Abbasid Caliphate. He is succeeded by his son al-Mahdi.

776 CE16 entries

  • April 24 – Emperor Leo IV ("the Khazar") appoints his 5-year-old son Constantine VI co-ruler of the Byzantine Empire. This leads to an uprising, led by one of Leo's half-brothers, Caesar Nikephoros, the second son of former emperor Constantine V. The revolt is quickly suppressed. Fortunately for Nikephoros, his only punishment is to be stripped of his titles, while the rest of the conspirators are blinded, tonsured, and exiled to Cherson (southern Crimea) under guard.
  • Saxon Wars: The Saxons again revolt against Christianity and Frankish rule. Eresburg falls, but a Saxon assault upon the castle of Syburg fails. Charlemagne hurriedly returns from Italy, launching a counter-offensive which defeats the Saxons. Most of their leaders are summoned to the Lippe at the town of Bad Lippspringe (North Rhine-Westphalia), to submit formally to Charlemagne.
  • Battle of Otford: King Egbert II of Kent defeats the Mercians under King Offa (near Otford), and re-asserts himself as ruler of Kent.

777 CE14 entries

  • Abd al-Rahman ibn Rustam is recognized as imam of the Ibadis, in Maghreb (western North Africa).
  • Duke Tassilo III of Bavaria founds Kremsmünster Abbey (modern Austria). During this period, the Tassilo Chalice is possibly donated by Luitpirga, wife of Tassilo (approximate date).
  • Abbasid–Carolingian alliance: Charlemagne receives a request for support from pro-Abbasid rulers in the eastern thughur, or military frontier zone of the Emirate of Córdoba. Several powerful officials and noblemen in northeastern Iberia, such as the governors of Barcelona and Zaragoza, seek to rise up against the Umayyad emir Abd al-Rahman I.

778 CE26 entries

  • August 15 – Battle of Roncevaux Pass (Pyrenees): Charlemagne is defeated by the Basques. Among those killed is Roland, governor of the Breton March, who will be immortalized in the 11th century epic The Song of Roland. This marks the beginning of medieval French literature.
  • In Japan, the Kiyomizu-dera Buddhist temple is founded in Kyoto. Its main hall (Hondo) is built in 1633 without a single nail.
  • Saxon raiders destroy many churches deep in Frankish territory. The Benedictine monks of Fulda Abbey (modern-day Hesse) hurriedly carry the relics of Saint Boniface over the Rhön Mountains to safety.

779 CE13 entries

  • June 12 - In China, De Zong (personal name Li Kuo) succeeds his father Dai Zong, as emperor of the Tang Dynasty.
  • Battle of Bensington: King Offa of Mercia defeats his rival Cynewulf of Wessex at Bensington (modern-day Oxfordshire). He seizes control of Berkshire, and probably London as well. According to sources of the Anglo-Saxon Chronicle Offa becomes "King of All England". Charlemagne writes a letter to him as "his dearest brother", but when Offa refuses to let one of Charlemagne's sons marry one of his daughters, Charlemagne threatens to close the ports to English traders.
  • Saxon Wars: King Charlemagne assembles a Frankish army at Düren, crosses the Rhine at the modern town of Wesel, and defeats the Saxons in battle near Bocholt (North Rhine-Westphalia). All the main Westphalian leaders are captured, except Widukind. Charlemagne crosses the Weser, Oker and Ohre rivers into Eastphalian territory, where local leaders submit to Frankish rule and hand over hostages. Widukind remains in northern Saxony, and relies on guerrilla warfare.