285 BC Chr.
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284 BC Chr. |
283 BC Chr. |
282 BC Chr. |
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| 285 BC Chr. | |
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| 285 BC In other calendars | |
| Buddhist calendar | 259/260 (southern Buddhism); 258/259 (alternative calculation according to Buddha's Parinirvana ) |
| Chinese calendar | 40th (41st) cycle , year of the fire-rat丙子 ( at the beginning of the year wood-pig 乙亥) |
| Greek calendar | 3rd / 4th Year of the 123rd Olympiad |
| Jewish calendar | 3476/77 |
| Roman calendar | from urbe condita CDLXIX (469) |
| Seleucid era | Babylon: 26/27 (turn of the year April); Syria: 27/28 (turn of the year October) |
Events
Diadochin rich
- Ptolemy I Soter, King of Egypt , abdicates in favor of his son and fellow king Ptolemy II Philadelphos. He marries Arsinoë I , a daughter of the Thracian king Lysimachus . Ptolemy II's elder brother, Ptolemy Keraunos , flees Egypt to Lysimachus.
- Lysimachus expels Pyrrhus I from Macedonia and makes himself the sole ruler there.
Western Mediterranean
- Appius Claudius Caecus is appointed dictator again by the Romans .
- The Celtic Senones cross the Apennines ; at Arezzo they defeat a Roman army under Lucius Caecilius Metellus Denter . Beginning of to 282 BC Chr. Continuous Roman-Celtic war.
- Rome concludes an alliance with Thurioi , who is besieged by the Lucanians and Grossians . As a result, the Lucanians and Bruttier approach the anti-Roman party among the Samnites and in Taranto .
Died
- around 285 BC Chr .: Dikaiarchos , Greek polymath