820s

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Millennium: 1st millennium
Centuries: 8th century9th century10th century
Decades: 790s 800s 810s820s830s 840s 850s
Years: 820 821 822 823 824 825 826 827 828 829
Categories: BirthsDeathsArchitecture
EstablishmentsDisestablishments

This is a list of events occurring in the 820s, ordered by year.

820[edit]

By place[edit]

Asia[edit]

  • 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.

Byzantine Empire[edit]

Europe[edit]

By topic[edit]

Science and technology[edit]

821[edit]

By place[edit]

Asia[edit]

  • Tang Mu Zong becomes emperor of China.

Byzantine Empire[edit]

Europe[edit]

822[edit]

By place[edit]

Europe[edit]

Byzantine Empire[edit]

Asia[edit]

Americas[edit]

By topic[edit]

Religion[edit]

823[edit]

By place[edit]

Byzantine Empire[edit]

  • Defeat of the Byzantine rebel Thomas the Slav by the forces of Michael II at Diabasis in Thrace. Thomas and his supporters flee to Arkadiopolis, where they are blockaded by imperial troops. After five months, Thomas is surrendered to Michael by his supporters and executed.

Asia[edit]


824[edit]

By place[edit]

Europe[edit]

Byzantine Empire[edit]

By topic[edit]

Religion[edit]

825[edit]

By place[edit]

Europe[edit]

826[edit]

By place[edit]

Asia[edit]

By topic[edit]

Religion[edit]

827[edit]

By place[edit]

Europe[edit]

America[edit]

  • The royal ceremonial centre at Copán is abandoned.

By topic[edit]

Religion[edit]

Science[edit]

828[edit]

By place[edit]

Europe[edit]

Asia[edit]

By topic[edit]

Religion[edit]

829[edit]

By place[edit]

Europe[edit]

Byzantine Empire[edit]

Egypt[edit]

  • The Nile freezes over.[3]

Asia[edit]

By topic[edit]

Religion[edit]


Significant people[edit]

Births[edit]

Deaths[edit]

References[edit]

  1. ^ Gilbert Meynier (2010) L'Algérie cœur du Maghreb classique. De l'ouverture islamo-arabe au repli (658-1518). Paris: La Découverte; pp.23.
  2. ^ Rucquoi, Adeline (1993). Histoire médiévale de la Péninsule ibérique. Paris: Seuil. p. 86. ISBN 2-02-012935-3. 
  3. ^ Lamb, H. H. (1977) Climate: Present, Past and Future: Climatic History and the Future. Vol 2, Methuen and Co. Ltd., London.