800

800 (DCCC) was a leap year starting on Wednesday of the Julian calendar, the 800th year of the Common Era (CE) and Anno Domini (AD) designations, the 800th year of the 1st millennium, the 100th and last year of the 8th century, and the 1st year of the 800s decade. As of the start of 800, the Gregorian calendar was 4 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium:	1st millennium
Centuries:	7th century – 8th century – 9th century
Decades:	770s  780s  790s  – 800s –  810s  820s  830s
Years:	797 798 799 – 800 – 801 802 803

800 in other calendars

Gregorian calendar	800 DCCC
Ab urbe condita	1553
Armenian calendar	249 ԹՎ ՄԽԹ
Assyrian calendar	5550
Balinese saka calendar	721–722
Bengali calendar	207
Berber calendar	1750
Buddhist calendar	1344
Burmese calendar	162
Byzantine calendar	6308–6309
Chinese calendar	己卯年 (Earth Rabbit) 3496 or 3436     — to — 庚辰年 (Metal Dragon) 3497 or 3437
Coptic calendar	516–517
Discordian calendar	1966
Ethiopian calendar	792–793
Hebrew calendar	4560–4561
Hindu calendars
- Vikram Samvat	856–857
- Shaka Samvat	721–722
- Kali Yuga	3900–3901
Holocene calendar	10800
Iranian calendar	178–179
Islamic calendar	183–184
Japanese calendar	Enryaku 19 (延暦１９年)
Javanese calendar	695–696
Julian calendar	800 DCCC
Korean calendar	3133
Minguo calendar	1112 before ROC 民前1112年
Nanakshahi calendar	−668
Seleucid era	1111/1112 AG
Thai solar calendar	1342–1343
Tibetan calendar	阴土兔年 (female Earth-Rabbit) 926 or 545 or −227     — to — 阳金龙年 (male Iron-Dragon) 927 or 546 or −226

Events

• Irish monks come to Iceland.