280s

Millennium:	1st millennium
Centuries:	2nd century; 3rd century; 4th century;
Decades:	260s; 270s; 280s; 290s; 300s;
Years:	280; 281; 282; 283; 284; 285; 286; 287; 288; 289;
Categories:	Births; Deaths; Establishments; Disestablishments;

The 280s decade ran from January 1, 280, to December 31, 289.

Events

280

By place

Roman Empire

Roman usurper Proculus starts a rebellion at Lugdunum (Lyon, France), and proclaims himself emperor.
Emperor Probus drives the Alans off to Asia Minor and suppresses the revolt in Gaul; Proculus is executed.
The Germans destroy the Roman fleet on the Rhine; Bonosus is proclaimed emperor at Colonia Agrippina (Cologne).
Probus defeats the army under Bonosus. Bonosus sees no way out and hangs himself. His family is treated with honours.
Julius Saturninus, governor of Syria, is in Alexandria, charged with the defense of the East. He is declared emperor and withdraws to Apamea. Probus besieges the city and puts him to death.
Roman territory is under constant threat of raids from Franks. The cities in Gaul are reinforced with defensive walls.

Europe

The Thuringii, a Germanic tribe, appears in the Harz Mountains (Thuringia) of central Germania.

China

Emperor Wu of the Jin dynasty completes the unification of China, which was previously divided between three contending powers during the Three Kingdoms period. The Jin dynasty's capital of Luoyang becomes a thriving centre of commerce as foreign diplomats and traders travel there.

Persia

King Bahram II of the Sassanid Empire (Persia) sends envoys to seek peaceful relations with Rome.

India

The Gupta Empire (India) is founded (approximate date).

By topic

Arts and sciences

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

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Significant people

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gollark: There are some CC/OC programs for that.

gollark: I think half the power output is going just on keeping our stuff stored and accessible.

gollark: That takes lots of RF. We only have a single RTG, solar panel, and tree oil setup (which can do 120RF/t *peak*, but probably only 20 sustained).

gollark: We don't have Mekanism, but I assume you mean "automining in general".

gollark: "Very expensive" = "we literally cannot build even the electromagnetic containment with currently available resources"

References

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Millennium:	1st millennium
Centuries:	2nd century 3rd century 4th century
Decades:	260s 270s 280s 290s 300s
Years:	280 281 282 283 284 285 286 287 288 289
Categories:	Births Deaths Establishments Disestablishments