810

810 in various calendars
Gregorian calendar	810; DCCCX
Ab urbe condita	1563
Armenian calendar	259; ԹՎ ՄԾԹ
Assyrian calendar	5560
Balinese saka calendar	731–732
Bengali calendar	217
Berber calendar	1760
Buddhist calendar	1354
Burmese calendar	172
Byzantine calendar	6318–6319
Chinese calendar	己丑年 (Earth Ox); 3507 or 3300; — to —; 庚寅年 (Metal Tiger); 3508 or 3301
Coptic calendar	526–527
Discordian calendar	1976
Ethiopian calendar	802–803
Hebrew calendar	4570–4571
Hindu calendars
- Vikram Samvat	866–867
- Shaka Samvat	731–732
- Kali Yuga	3910–3911
Holocene calendar	10810
Iranian calendar	188–189
Islamic calendar	194–195
Japanese calendar	Daidō 5 / Kōnin 1; (弘仁元年)
Javanese calendar	706–707
Julian calendar	810; DCCCX
Korean calendar	3143
Minguo calendar	1102 before ROC; 民前1102年
Nanakshahi calendar	−658
Seleucid era	1121/1122 AG
Thai solar calendar	1352–1353
Tibetan calendar	阴土牛年; (female Earth-Ox); 936 or 555 or −217; — to —; 阳金虎年; (male Iron-Tiger); 937 or 556 or −216

Millennium:	1st millennium
Centuries:	8th century; 9th century ; 10th century;
Decades:	790s; 800s; 810s ; 820s; 830s;
Years:	807; 808; 809; 810 ; 811; 812; 813;

Year 810 (DCCCX) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.

Events

Spring – The Venetian dukes change sides again, submitting to King Pepin, under the authority of his father Charlemagne, who then proceeds to take Venice. Emperor Nikephoros I sends a Byzantine fleet to Dalmatia, prompting Pepin to withdraw to the mainland. A legate is dispatched to Venice, where he deposes the turncoat dukes, before continuing on to Aachen, to negotiate a peace with Charlemagne. Charlemagne recognises Byzantine dominance over Venice and Dalmatia in the Adriatic Sea.

King Godfred of the Danes leads 200 Viking ships to plunder the Frisian coast, and forces the merchants to pay 100 pounds of silver. He claims Northern Frisia as Danish territory.
Godfred is killed by one of his housecarls, and is succeeded by Hemming. According to Notker of Saint Gall, the bodyguard who murdered Godfred is possibly one of his sons.^[1]
Al-Andalus (modern Spain): The city of Mérida rises up against the Emirate of Córdoba.^[2]

Tikal Temple III, also known as the Temple of the Jaguar Priest,^[3] is constructed in Tikal National Park (modern Guatemala).
The Book of Kells (also known as the Book of Colomba), an illuminated manuscript, is completed by Celtic monks (approximate date).

^ Notker the Stammerer, De Carolo Magno, Book II, Chapter 13.
^ Rucquoi, Adeline (1993). Histoire médiévale de la Péninsule ibérique (in French). Paris: Seuil. pp. 443, 86. ISBN 2-02-012935-3.
^ Coe 1967, 1988, p. 76.