340s BC deaths

Plato ( ; Greek: , ; born  BC, died 348/347 BC) was an ancient Greek philosopher of Classical Athens who is most commonly considered the foundational thinker of the Western philosophical tradition. An innovator of the literary dialogue and dialectic forms, Plato influenced all the major areas of theoretical philosophy and practical philosophy, and was the founder of the Academy, a philosophical school in Athens where Plato taught the collection of philosophical theories that would later become known as Platonism.

Bactrian military officer of the Achaemenid Empire and satrap of Armenia at the end of the 5th-century BC and first half of the 4th-century BC.

Nicesipolis or Nicasipolis of Pherae ( Nikesipolis), was a Thessalian woman, native of the city Pherae, wife or concubine of king Philip II of Macedon and mother of Thessalonike of Macedon.

Theodectes (; c. 380c. 340 BC) was a Greek rhetorician and tragic poet, of Phaselis in Lycia.

4th-century BC King of Salamis and Persian Satrap

Nicochares (, died ca. 345 BC) was an Athenian poet of the Old Comedy, son of the comic playwright Philonides and contemporary with Aristophanes. The titles of Nicochares' plays, as enumerated by the Suda, are, Αμυμώνη (Amymone), Πέλοψ (Pelops), Γαλάτεια (Galatea), Ηρακλής Γάμων (Hercules Getting Married), Ηρακλής Χορηγός (Hercules the Play-Producer), Κρήτες (Cretans), Λάκωνες (The Laconians), Λημνίαι (Lemnian Women), Κένταυροι (Centaurs), and Χειρογάστορες (Those Living Hand-to-Mouth). Augustus Meineke suggested that the Amymone and Pelops may have been alternative names for the same work, as

Euphraeus (; fl. c. 4th century BC; d. ca. 342 BC/341 BC) was a philosopher and student of Plato from the town of Oreus in northern Euboea. He appears to have been active in politics in addition to his speculative studies, being first an adviser to Perdiccas III of Macedon and then an opponent of Philip II and his supporters in Oreus. Information regarding his life is scant, however, and few facts about it are mentioned in more than one source. He appears in the Fifth Letter of Plato, Demosthenes' Third Philippic, and Athenaeus' Deipnosophistae (which repeats the information about him containe