271

Roman Empire

 * The are forced to withdraw across the.
 * The are repulsed from Italy, and forced back to the Alps.
 * Emperor withdraws troops to the Danube frontier, abandoning . (Note: this withdrawal may have lasted until . Both years are mentioned by various sources.)
 * Aurelian begins construction of a new defensive wall, 16 meters high, to protect Rome.

Europe

 * , of the, is ated by Attitianus, reportedly for reasons of personal .  presumably serves as Emperor for a few days before being replaced by.

Asia

 * proclaims herself to be Empress, and breaks all relations with the Roman Empire.
 * Zenobia gives her son Vaballatus the title of.

Arts and Sciences

 * A is first used in China.

Deaths

 * , general of the
 * , last Emperor of the
 * , of the
 * , of the  (confirmed by two coins)
 * , Chinese minister of public works; played a role developing the methods of
 * , general of