280

280 in various calendars
Gregorian calendar	280; CCLXXX
Ab urbe condita	1033
Assyrian calendar	5030
Balinese saka calendar	201–202
Bengali calendar	−313
Berber calendar	1230
Buddhist calendar	824
Burmese calendar	−358
Byzantine calendar	5788–5789
Chinese calendar	己亥年 (Earth Pig); 2977 or 2770; — to —; 庚子年 (Metal Rat); 2978 or 2771
Coptic calendar	−4 – −3
Discordian calendar	1446
Ethiopian calendar	272–273
Hebrew calendar	4040–4041
Hindu calendars
- Vikram Samvat	336–337
- Shaka Samvat	201–202
- Kali Yuga	3380–3381
Holocene calendar	10280
Iranian calendar	342 BP – 341 BP
Islamic calendar	353 BH – 352 BH
Javanese calendar	159–160
Julian calendar	280; CCLXXX
Korean calendar	2613
Minguo calendar	1632 before ROC; 民前1632年
Nanakshahi calendar	−1188
Seleucid era	591/592 AG
Thai solar calendar	822–823
Tibetan calendar	阴土猪年; (female Earth-Pig); 406 or 25 or −747; — to —; 阳金鼠年; (male Iron-Rat); 407 or 26 or −746

Millennium:	1st millennium
Centuries:	2nd century; 3rd century ; 4th century;
Decades:	260s; 270s; 280s ; 290s; 300s;
Years:	277; 278; 279; 280 ; 281; 282; 283;

Year 280 (CCLXXX) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Messalla and Gratus (or, less frequently, year 1033 Ab urbe condita). The denomination 280 for this year has been used since the early medieval period, when the Anno Domini calendar RafoLmzTi2

era became the prevalent method in Europe for naming years.

Events

Roman usurper Proculus starts a rebellion at Lugdunum (Lyon, France), and proclaims himself emperor.^[1]
Emperor Probus drives the Alans off to Asia Minor and suppresses the revolt in Gaul; Proculus is executed.^[1]
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.^[2]
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.^[3]
Roman territory is under constant threat of raids from Franks. The cities in Gaul are reinforced with defensive walls.^[4]

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.^[5]

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

^ ^a ^b Sellars, Ian J. (2013). The Monetary System of the Romans: A description of the Roman coinage from early times to the reform of Anastasius. Ian J. Sellars. p. 374.
^ ^a ^b Vulic, Vladimir (December 25, 2021). "Emperor Probus". Roman Empire. Retrieved November 11, 2023.
^ Balty, Jean (1988). "Apamea in Syria in the Second and Third Centuries AD". Journal of Roman Studies. 78: 91–104. doi:10.2307/301452. JSTOR 301452.
^ Hornblower, Simon (November 9, 2023). "Ancient Rome". Britannica. Retrieved November 11, 2023.
^ Lotha, Gloria (August 9, 2020). "Wudi". Britannica. Retrieved November 11, 2023.