775

775 in various calendars
Gregorian calendar	775; DCCLXXV
Ab urbe condita	1528
Armenian calendar	224; ԹՎ ՄԻԴ
Assyrian calendar	5525
Balinese saka calendar	696–697
Bengali calendar	182
Berber calendar	1725
Buddhist calendar	1319
Burmese calendar	137
Byzantine calendar	6283–6284
Chinese calendar	甲寅年 (Wood Tiger); 3472 or 3265; — to —; 乙卯年 (Wood Rabbit); 3473 or 3266
Coptic calendar	491–492
Discordian calendar	1941
Ethiopian calendar	767–768
Hebrew calendar	4535–4536
Hindu calendars
- Vikram Samvat	831–832
- Shaka Samvat	696–697
- Kali Yuga	3875–3876
Holocene calendar	10775
Iranian calendar	153–154
Islamic calendar	158–159
Japanese calendar	Hōki 6; (宝亀６年)
Javanese calendar	670–671
Julian calendar	775; DCCLXXV
Korean calendar	3108
Minguo calendar	1137 before ROC; 民前1137年
Nanakshahi calendar	−693
Seleucid era	1086/1087 AG
Thai solar calendar	1317–1318
Tibetan calendar	阳木虎年; (male Wood-Tiger); 901 or 520 or −252; — to —; 阴木兔年; (female Wood-Rabbit); 902 or 521 or −251

Millennium:	1st millennium
Centuries:	7th century; 8th century ; 9th century;
Decades:	750s; 760s; 770s ; 780s; 790s;
Years:	772; 773; 774; 775 ; 776; 777; 778;

Year 775 (DCCLXXV) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. The denomination 775 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.

Events

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^{[citation needed]}. He is succeeded by his 25-year-old son Leo IV ("the Khazar"), who continues Constantine's campaigns against the Bulgars and Muslim Arabs.

Saxon Wars: King Charlemagne holds a major assembly at Quierzy (Northern France). He leads a Frankish army into Saxony to retake the castrum of Syburg (near Dortmund), then rebuilds and garrisons fortified Eresburg. He reaches the Weser at a place called Braunsberg, where the Saxons stand for battle, but are defeated when Frankish troops cross the river.^[1]
Westphalian Saxons, probably commanded by Widukind, cross the Weser and fight an inconclusive battle at Hlidbeck (modern-day Lübbecke). Charlemagne claims victory, but perhaps in reality suffers a setback. He reunites his forces and inflicts a real defeat upon the Saxons, seizing considerable booty and taking hostages, though Widukind escapes.^[2]
Autumn – Charlemagne retakes the Hellweg (main corridor) along the Lippe Valley, establishing communications between Austrasia, Hesse and Thuringia. It is used as a trade route under Frankish supervision.^[3]
The German city of Giessen (Hesse) is founded.

Andalusian merchants set up an emporium (trade settlement) on the Maghreb coast at Ténès (modern Algeria). It is early evidence of the revival of the maritime trade in the Western Mediterranean, after the chaos of the early 8th century.^[4]

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.
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.

At around this time, Baghdad becomes the largest city in the world, taking the lead from Chang'an, capital of China.^[5]

Tibet subdues her Himalayan neighbors, and concludes a boundary agreement with the Chinese Tang dynasty (approximate date).
King Dharmapala begins his reign of Bengal (South Asia).^[6]

A 1.2% growth of carbon-14 concentration recorded in tree rings suggests that a very strong solar storm may have hit Earth, in either 774 or 775.^[7]

April 25
- Smbat VII Bagratuni, Armenian noble
- Mushegh VI Mamikonian, Armenian noble
September 14 – Constantine V, Byzantine emperor (b. 718)
October 6 – Al-Mansur, Muslim caliph (b. 714)
date unknown
- Ciniod I, king of the Picts
- Fujiwara no Kurajimaro, Japanese politician (b. 734)
- Princess Inoe of Japan (b. 717)^[8]
- Isma'il ibn Jafar, Shī‘ah Imām (approximate date)
- Kibi no Makibi, Japanese scholar (b. 695)
- Ruyuan, Chinese Buddhist abbess and master

^ David Nicolle (2014). The Conquest of Saxony AD 782–785, pp. 14–15. ISBN 978-1-78200-825-5.
^ David Nicolle (2014). The Conquest of Saxony AD 782–785, p. 15. ISBN 978-1-78200-825-5.
^ David Nicolle (2014). The Conquest of Saxony AD 782–785, p. 12. ISBN 978-1-78200-825-5.
^ Gilbert Meynier (2010). L'Algérie cœur du Maghreb classique. De l'ouverture islamo-arabe au repli (658-1518). Paris: La Découverte; p. 26.
^ "Largest Cities Through History". About.com Geography. Archived from the original on August 18, 2016. Retrieved March 1, 2006.
^ Bagchi, Jhunu (1993). The History and Culture of the Pālas of Bengal and Bihar, cir 750 A.D. - 1200 A.D. ISBN 978-81-7017-301-4.
^ Lovett, Richard A. (2012). "Mysterious radiation burst recorded in tree rings". Nature News & Comment. doi:10.1038/nature.2012.10768. S2CID 124800942.
^ Brown and Ishida. Gukanshō, pp. 276–277; Varley, H. Paul. Jinnō Shōtōki, pp. 147–148; Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 81–85., p. 81, at Google Books