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820

From Simple English Wikipedia, the free encyclopedia
Millennium: 1st millennium
Centuries: 8th century9th century10th century
Decades: 790s  800s  810s  – 820s –  830s  840s  850s
Years: 817 818 819820821 822 823
820 in other calendars
Gregorian calendar820
DCCCXX
Ab urbe condita1573
Armenian calendar269
ԹՎ ՄԿԹ
Assyrian calendar5570
Balinese saka calendar741–742
Bengali calendar227
Berber calendar1770
Buddhist calendar1364
Burmese calendar182
Byzantine calendar6328–6329
Chinese calendar己亥(Earth Pig)
3516 or 3456
    — to —
庚子年 (Metal Rat)
3517 or 3457
Coptic calendar536–537
Discordian calendar1986
Ethiopian calendar812–813
Hebrew calendar4580–4581
Hindu calendars
 - Vikram Samvat876–877
 - Shaka Samvat741–742
 - Kali Yuga3920–3921
Holocene calendar10820
Iranian calendar198–199
Islamic calendar204–205
Japanese calendarKōnin 11
(弘仁11年)
Javanese calendar716–717
Julian calendar820
DCCCXX
Korean calendar3153
Minguo calendar1092 before ROC
民前1092年
Nanakshahi calendar−648
Seleucid era1131/1132 AG
Thai solar calendar1362–1363
Tibetan calendar阴土猪年
(female Earth-Pig)
946 or 565 or −207
    — to —
阳金鼠年
(male Iron-Rat)
947 or 566 or −206

820 (DCCCXX) was a leap year starting on Sunday of the Julian calendar, the 820th year of the Common Era (CE) and Anno Domini (AD) designations, the 820th year of the 1st millennium, the 20th year of the 9th century, and the 1st year of the 820s decade. As of the start of 820, the Gregorian calendar was 4 days ahead of the Julian calendar, which was the dominant calendar of the time.