820

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Centuries: 8th century - 9th century - 10th century
Decades: 790s  800s  810s  - 820s -  830s  840s  850s
Years: 817 818 819 - 820 - 821 822 823
820 by topic
v • d • e
Politics
State leaders - Sovereign states
Birth and death categories
Births - Deaths
Establishment and disestablishment categories
Establishments - Disestablishments
820 in other calendars
Gregorian calendar 820
DCCCXX
Ab urbe condita 1573
Armenian calendar 269
ԹՎ ՄԿԹ
Bahá'í calendar -1024 – -1023
Berber calendar 1770
Buddhist calendar 1364
Burmese calendar 182
Chinese calendar 3456/3516-12-12
(己亥年十二月十二日)
— to —
3457/3517-11-23
(庚子年十一月廿三日)
Coptic calendar 536 – 537
Ethiopian calendar 812 – 813
Hebrew calendar 4580 – 4581
Hindu calendars
 - Vikram Samvat 875 – 876
 - Shaka Samvat 742 – 743
 - Kali Yuga 3921 – 3922
Holocene calendar 10820
Iranian calendar 198 – 199
Islamic calendar 204 – 205
Japanese calendar
Korean calendar 3153
Thai solar calendar 1363
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[edit] Events

[edit] By Place

[edit] Asia

  • Tahir, the son of a slave, is rewarded with the governorship of Khurasan for supporting the caliphate. He rules independently of Baghdad, not even mentioning the caliph's name in Friday prayers in recognition of caliphal authority.

[edit] Byzantine Empire

[edit] Europe

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[edit] Science & Technology

[edit] Births

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