250 BC
Year 250 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Regulus and Longus (or, less frequently, year 504 Ab urbe condita). The denomination 250 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.
Events
By place
Egypt
Ptolemy II encourages the Jewish residents of Alexandria to have their Bible translated into Greek. Because around seventy translators are used to achieve this, the translation is known as the Septuagint.
Following the death of the King of Cyrene, Magas, Queen Apama II, Magas' widow, and Antigonus II arrange the marriage of Antigonus' half-brother Demetrius the Fair to Berenice of Cyrene, daughter of Magas and Apama. However, when Demetrius the Fair arrives, Apama becomes his lover. In response, Berenice leads an uprising in which Demetrius is killed in Apama's bedroom.
Roman Republic
In the Punic War, the Romans shift their attention to the southwest of Sicily. They send a naval expedition toward the Carthaginian city of Lilybaeum. En route, the Romans seize and burn the Carthaginian held cities of Selinous and Heraclea Minoa. The Romans then begin the siege of Lilybaeum.