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845

Centuries: 8th century - 9th century - 10th century

Decades: 790s 800s 810s 820s 830s - 840s - 850s 860s 870s 880s 890s

Years: 840 841 842 843 844 - 845 - 846 847 848 849 850

Events

March 28 - Paris is sacked by Viking raiders, probably under Ragnar Lodbrok, who collect a huge ransom in exchange for leaving.

Births

Deaths

Michael I, Byzantine Emperor (811-814)
al-Khwarizmi, mathematician (approximate date)

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