842

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

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

Years: 837 838 839 840 841 - 842 - 843 844 845 846 847

• Oath of Strasbourg - alliance of Louis the German and Charles the Bald against emperor Lothar - sworn and recorded in vernacular languages.
• Ramiro I succeeds Alfonso II as king of Asturias.
• Three year old Michael III succeeds Theophilus II as emperor of Byzantium.
• Uurad[?] is succeeded by Bred[?], then Kineth[?].
• End of the reign of caliph Moqtasim[?].
• Charles the Bald marries Ermentrude[?].

Births

Deaths

• Emperor Saga of Japan
• Alfonso II of Asturias
• Byzantine Emperor Theophilus II