280

[edit] Events

[edit] By Place

[edit] Roman Empire

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

[edit] Europe

• The Germanic tribe the Thuringii appears.

[edit] Asia

• The Kingdom of Wu is dissolved by Jin, finally ending the Three Kingdoms period in the history of China.

[edit] By Topic

[edit] Arts and Sciences

• The Greek mathematician Pappus demonstrates geometrically the property of the center of gravity.

[edit] Births

• Saint George, soldier of the Roman Empire and later Christian martyr (or 275, approximate date)

[edit] Deaths

• Maharaja Sri-Gupta of the Gupta dynasty
• Proclus, Roman usurper
• Cen Hun, minister under the Kingdom of Wu
• Kang Senghui
• Zhang Ti