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

By place

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.

Byzantine Empire

Europe

By topic

Science and technology

821

By place

Asia

Byzantine Empire

822

By place

Europe

Byzantine Empire

Asia

By topic

Religion

823

By place

Byzantine Empire

  • 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

824

By place

Europe

Byzantine Empire

By topic

Religion

825

By place

Europe

826

By place

Asia

By topic

Religion

827

By place

Europe

America

  • The royal ceremonial centre at Copán is abandoned.

By topic

Religion

Science

828

By place

Europe

Asia

By topic

Religion

829

By place

Europe

Byzantine Empire

Egypt

  • The Nile freezes over.[3]

Asia

By topic

Religion


Significant people

Births

Deaths

References

  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.

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