212

Roman Empire

 * Emperor decrees that freemen throughout the Roman Empire are to become  (the ).
 * ,, and others who refuse to defend Caracalla's murder of are put to death.
 * Construction begins on the in.
 * becomes a Roman province.

Deaths

 * , general of the
 * , Prefect of Liang Province, China
 * , Second son of Ma Teng
 * , Third son of Ma Teng
 * , poet and physician
 * , ; Praetorian prefect under
 * , advisor to