280

Roman Empire

 * Emperor suppresses the revolt of the.
 * Probus chases the off to.
 * The commander of the Roman fleet on the, , is proclaimed emperor. Beaten by Probus' troops, Bonosus is hung.
 * In Alexandria,, who is in charge of the defense of the East, is declared emperor. He withdraws to , is besieged and put to death.
 * Owing to the constant threat of invasion, the cities in construct or reinforce their defensive walls.

Europe

 * The Germanic tribe the appears.

Asia

 * The is dissolved by, finally ending the  period in the history of China.

Arts and Sciences

 * The Greek mathematician demonstrates geometrically the property of the.

Births

 * , of the Roman Empire and later   (or, approximate date)

Deaths

 * of the
 * , minister under the
 * , minister under the