255 BC
Year 255 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Nobilior and Paullus (or, less frequently, year 499 Ab urbe condita). The denomination 255 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
| Millennium: | 1st millennium BC |
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| 255 BC by topic |
| Politics |
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| Gregorian calendar | 255 BC CCLIV BC |
| Ab urbe condita | 499 |
| Ancient Egypt era | XXXIII dynasty, 69 |
| - Pharaoh | Ptolemy II Philadelphus, 29 |
| Ancient Greek era | 131st Olympiad, year 2 |
| Assyrian calendar | 4496 |
| Balinese saka calendar | N/A |
| Bengali calendar | −847 |
| Berber calendar | 696 |
| Buddhist calendar | 290 |
| Burmese calendar | −892 |
| Byzantine calendar | 5254–5255 |
| Chinese calendar | 乙巳年 (Wood Snake) 2442 or 2382 — to — 丙午年 (Fire Horse) 2443 or 2383 |
| Coptic calendar | −538 – −537 |
| Discordian calendar | 912 |
| Ethiopian calendar | −262 – −261 |
| Hebrew calendar | 3506–3507 |
| Hindu calendars | |
| - Vikram Samvat | −198 – −197 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2846–2847 |
| Holocene calendar | 9746 |
| Iranian calendar | 876 BP – 875 BP |
| Islamic calendar | 903 BH – 902 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 2079 |
| Minguo calendar | 2166 before ROC 民前2166年 |
| Nanakshahi calendar | −1722 |
| Seleucid era | 57/58 AG |
| Thai solar calendar | 288–289 |
| Tibetan calendar | 阴木蛇年 (female Wood-Snake) −128 or −509 or −1281 — to — 阳火马年 (male Fire-Horse) −127 or −508 or −1280 |
Events
Roman Republic
- The Battle of Adis (or Adys) is fought near the city of that name, 40 miles (64 kilometres) southeast of Carthage, between Carthaginian forces and a Roman army led by Marcus Atilius Regulus. The Romans inflict a crushing defeat upon the Carthaginians, and the latter then sue for peace. The ensuing negotiations between the parties lead to Regulus demanding Carthage agree to an unconditional surrender, cede Sicily, Corsica and Sardinia to Rome, renounce the use of their navy, pay an indemnity, and sign a vassal-like treaty. These terms are so harsh that the people of Carthage resolve to keep fighting.
- The Carthaginians, angered by Regulus' demands, hire Xanthippus, a Spartan mercenary, to reorganize the army. The revitalised Carthaginian army, led by Xanthippus, decisively defeat the Romans in the Battle of Tunis and capture their commander Marcus Atilius Regulus. A Roman fleet, sent to rescue Regulus and his troops, is wrecked in a storm off Sicily.
Egypt
- In the Second Syrian War, Ptolemy II loses ground in Cilicia, Pamphylia, and Ionia, while Antiochus II regains Miletus and Ephesus. A peace is then concluded between Antiochus and Ptolemy under which Antiochus is to marry Ptolemy's daughter Berenice Syra.
Bactria
- Diodotus I, Seleucid satrap of Bactria, rebels against Antiochus II and becomes the founder of the Greco-Bactrian Kingdom.
China
- King Hui of Zhou becomes the last claimant King of the Zhou Dynasty of China.
Astronomy
- Eratosthenes invents the armillary sphere, a model of the celestial sphere.
Births
- Xu Fu, ancient Chinese alchemist
References
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