What happened in 840?
840 Erzurum earthquake, Uyghur Khaganate dissolved and Einhard — among 21 events recorded in 840.
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People 13
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Einhard died
Frankish scholar and courtier (c. 775 – 840)
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Ibn al-Muqaffa' died
8th-century Persian author and translator
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Al-Qasim ibn Isa died
Arab Abbasid military commander
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John IX born
Born in Tivoli. Pope.
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Theodore II born
Born in Rome. Pope (840-897).
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Notker the Stammerer born
Born in Jonschwil. Benedictine monk and musician.
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Louis the Pious died
Died in Ingelheim am Rhein. King of the Franks.
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Michael III born
Born in Constantinople. Byzantine emperor from 842 to 867.
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Berengar I of Italy born
Born in Cividale del Friuli. Holy Roman Emperor from 915 to 924.
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Emperor Junna died
Died in Junna-in. Emperor of Japan.
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Emperor Wenzong of Tang died
Died in Chang'an. Emperor of the Tang Dynasty.
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Euphrosyne died
Died in Sancaktar Hayrettin Mosque. Byzantine empress.
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Theophylact of Nicomedia died
Died in Constantinople. Byzantine bishop and saint.
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Religion & Belief Systems 1
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San Bartolomeo
Church in Venice
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Disasters & Pandemics 1
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840 Erzurum earthquake
Possible earthquake
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Architecture & Engineering 1
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Monastery of Saint-André d'Eixalada
Monastery located in Pyrénées-Orientales, in France
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Empires & Countries 2
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Uyghur Khaganate dissolved
Uyghur Khaganate ceased to exist, having been centered at Ordu-Baliq.
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Karakhanid Khanate founded
Karakhanid Khanate was founded, with its capital at Kashgar.
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