|Centuries:||7th century – 8th century – 9th century|
|Decades:||740s 750s 760s – 770s – 780s 790s 800s|
|Years:||771 772 773 – 774 – 775 776 777|
|774 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1527|
|Chinese calendar||癸丑年 (Water Ox)
3470 or 3410
— to —
甲寅年 (Wood Tiger)
3471 or 3411
|- Vikram Samvat||830–831|
|- Shaka Samvat||696–697|
|- Kali Yuga||3875–3876|
|Japanese calendar||Hōki 5
|Minguo calendar||1138 before ROC
|Seleucid era||1085/1086 AG|
|Thai solar calendar||1316–1317|
|Wikimedia Commons has media related to 774.|
Year 774 (DCCLXXIV) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 774 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
- Battle of Berzitia: The Bulgarian ruler (khagan) Telerig sends a small raiding army (12,000 men) to strike into the southwest of Macedonia and capture Berzitia. Emperor Constantine V is informed for this raid by his spies in Pliska, and assembles an enormous force (80,000 men). He surprises the Bulgarians who did not expect to find a Byzantine army there, and defeats them with heavy losses.
- Telerig sends a message to Constantine V, stating that he is going to flee in exile to Constantinople. In exchange, he ask the emperor to reveal the spies to his associates in Pliska for their own safety. Constantine sends the Bulgarian government a list of the spies, however Telerig executes them all and eliminates the Byzantine spy network within his government.
- 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.
- June – King Desiderius surrenders the independence of the Lombards to the Franks and is exiled to Corbie Abbey (Picardy). Charlemagne annexes northern Italy as sub-kingdom and takes the title of Rex Langobardum. Some Lombards flee south to Benevento, which remains independent; duke Arechis II retitles himself "prince of Benevento".
- Saxon Wars: Saxon raiders ravage much of northern Hesse (modern Germany) and burn the abbey at Fritzlar, putting the abbot and monks to the sword. Charlemagne hurriedly returns to Austrasia, assembling local troops and recapture Eresburg before the approach of winter halts further operations.
- King Aurelius dies after a 6-year reign and is succeeded by his cousin-in-law Silo as ruler of Asturias (Northern Spain).
- Unrest in the Northumbrian Church appears to lead to the expulsion of king Alhred who is driven from his capital York. He sails from Bamburgh into exile amongst the Picts, where he is received by king Ciniod I. He is replaced by Æthelred I, the 11-year-old son of the late king Æthelwald Moll.
- King Offa of Mercia subdues the Anglo-Saxon kingdoms of Kent and Wessex (approximate date).
- A 1.2% growth of carbon-14 concentration recorded in tree rings suggests that a very strong radiation burst may have hit the earth in either 774 or 775.
- Abd al-Rahman al-Awza'i, Muslim scholar (b. 707)
- Abu Mikhnaf, Muslim historian (approximate date)
- Amoghavajra, Chinese translator (b. 705)
- Aurelius, king of Asturias (Spain)
- Gummarus, Frankish noblemen (b. 717)
- Kim Daeseong, Korean minister (b. 700)
- John V.A. Fine, Jr. (1991). The Early Medieval Balkans: "A Critical Survey from the Sixth to the Late Twelfth Century", p. 77. ISBN 978-0-472-08149-3
- David Nicolle (2014). The Conquest of Saxony AD 782–785, p. 14. ISBN 978-1-78200-825-5