260
| Years |
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| Millennium |
| 1st millennium |
| Centuries |
| Decades |
| Years |
| 260 by topic |
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| Arts, history, and science |
| Countries |
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| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 260 CCLX |
| Ab urbe condita | 1013 |
| Assyrian calendar | 5010 |
| Balinese saka calendar | 181–182 |
| Bengali calendar | −333 |
| Berber calendar | 1210 |
| Buddhist calendar | 804 |
| Burmese calendar | −378 |
| Byzantine calendar | 5768–5769 |
| Chinese calendar | 己卯年 (Earth Rabbit) 2956 or 2896 — to — 庚辰年 (Metal Dragon) 2957 or 2897 |
| Coptic calendar | −24 – −23 |
| Discordian calendar | 1426 |
| Ethiopian calendar | 252–253 |
| Hebrew calendar | 4020–4021 |
| Hindu calendars | |
| - Vikram Samvat | 316–317 |
| - Shaka Samvat | 181–182 |
| - Kali Yuga | 3360–3361 |
| Holocene calendar | 10260 |
| Iranian calendar | 362 BP – 361 BP |
| Islamic calendar | 373 BH – 372 BH |
| Javanese calendar | 139–140 |
| Julian calendar | 260 CCLX |
| Korean calendar | 2593 |
| Minguo calendar | 1652 before ROC 民前1652年 |
| Nanakshahi calendar | −1208 |
| Seleucid era | 571/572 AG |
| Thai solar calendar | 802–803 |
| Tibetan calendar | ས་མོ་ཡོས་ལོ་ (female Earth-Hare) 386 or 5 or −767 — to — ལྕགས་ཕོ་འབྲུག་ལོ་ (male Iron-Dragon) 387 or 6 or −766 |
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Year 260 (CCLX) was a leap year starting on Sunday of the Julian calendar.
Events
By place
Roman Empire
- Battle of Edessa: Emperor Valerian is defeated by the Persians.
- Valerianus I has a meeting with Shapur to talk about peace. The truce is betrayed and he is taken prisoner for the rest of his life.
- Shapur I sends Valerian to Bishapur. The Roman army builds the Band-e Kaisar (Bridge of Valerian).
- Gallienus becomes the new emperor of Rome.
- Gallienus leaves the fortifications in the Black Forest area because of invading Alamanni.
- Gallienus lives at Mediolanum (modern Milan).
- Postumus, Roman usurper, forms the Gallic Empire.
- Saloninus, son of Gallienus, is made Augustus by his troops.
- Postumus kills Saloninus. He is made emperor.
- Postumus wins over all the Roman provinces west of the Alps, including Gaul, Britain and Hispania.
- The Roman fort of Wiesbaden (Germany) is captured by the Alamanni.
- The Franks take control over the Scheldt estuary (approximate date).
Asia
- Persian king Shapur I destroys Caesarea Mazaca in Asia Minor.
- Cao Huan succeeds Cao Mao as ruler of the Chinese Kingdom of Wei.
- Syria, Egypt and Palestine break off from the Roman Empire to form the Persian-supported Palmyrene Empire.
By topic
Arts and sciences
- Earliest known date of chess.
Religion
- Pope Dionysius makes bishop Dionysius of Alexandria explain why he is separating the members of the Trinity as three distinct gods.
- Paul of Samosata becomes Patriarch of Antioch.
Births
- Jin Huidi, emperor of the Jin Dynasty (approximate date)
- Gaius Galerius Valerius Maximianus, Roman Emperor (d. 311)
Deaths
- Cao Mao, ruler of the Chinese Kingdom of Wei (killed in an abortive coup d'état against Sima Zhao) (b. 241)
- Chen Tai, minister of the Kingdom of Wei
- Saloninus, Roman emperor and son of Gallienus
- Sun Liang, Emperor of the Chinese Kingdom of Wu (b. 243)
- Valerianus I, Roman emperor (approximate date)