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Roman Empire

 * A systematic persecution of begins in  under . Many Christians worship secretly.
 * Marcus Aurelius' son,, becomes then  as a coequal of his father.
 * Churches in southern are destroyed after a crowd accuses the local Christians of practicing cannibalism and incest.
 * Forty-seven Christians are martyred in (  and, , among them).
 * Marcus Aurelius and Commodus war a second time against the and the.

Asia

 * Chinese troops suffer a crushing defeat against a confederacy of Central Asian tribes led by the (see ).

Births

 * , Chinese female poet and musical composer
 * , Chinese general of
 * , Chinese politician, scholar and poet
 * , general of
 * , youngest son of Chinese warlord
 * , youngest son of Chinese warlord

Deaths

 * S., S. and other martyrs in