350 BC

Year 350 BC was a year of the pre-Julian Roman calendar. 

 Events 
 By place 
 Persian Empire 
 Sidon, the centre of the revolt against Persia, asks for help from its sister city of Tyre and from Egypt but gets very little.
 Idrieus, the second son of Hecatomnus, succeeds to the throne of Caria on the death of Artemisia II, the widow of his elder brother Mausolus. Shortly after he becomes ruler, at the request of the Persian king, Artaxerxes III, Idrieus equips a fleet of 40 triremes and an army of 8,000 mercenary troops and despatches them against Cyprus, under the command of the Athenian general Phocion.

 Greece 
 Alexander I becomes king of Epirus after his brother-in-law Philip II of Macedon dethrones Alexander's cousin Arymbas.
 Philip II has Abdera in Thrace sacked.

 Roman Republic 
 The Gauls, once more threatening Rome, are beaten by an army of Rome and its allies.

 America 
 The Maya civilization in Mesoamerica begins (approximate date).

 By topic 
 Science 
 Aristotle argues for a spherical Earth using lunar eclipses and other observations. Also he discusses logical reasoning in Organon.
 Plato proposes a geocentric model of the universe with the stars rotating on a fixed celestial sphere.

 Art 
 Praxiteles makes the Aphrodite of Knidos (approximate date). A composite of two similar Roman copies after the original marble is now kept at Musei Vaticani, Museo Pio Clementino, Gabinetto delle Maschere in Rome.
 The building of the Mausoleum in Halikarnassos (modern Bodrum in Turkey) is completed (approximate date). It is the grave of the Persian satrap and Carian ruler Mausolos and is built under the direction of his wife Artemisia. The mausoleum, which is said to be one of the Seven Wonders of the Ancient World, is today partly kept at the British Museum in London.
 The Corinthian capital is made in the tholos at Epidaurus. It is now kept at the Archaeological Museum in Epidaurus, Greece (approximate date).

 Births 

 Dicaearchus, Greek philosopher, cartographer, geographer, mathematician and polymath (d. c. 285 BC)
 Cassander, king of Macedonia and founder of Antipatrid dynasty (approximate date) (d. c. 297 BC)
 Shen Dao, Chinese philosopher known for his blend of Legalism and Taoism (approximate date) (d. c. 275 BC)

 Deaths 

 Artemisia, Queen of Caria and sister and wife of King Mausolus of Caria

Category:350s BC