Demetrius of Phalerum (also Demetrius of Phaleron or Demetrius Phalereus; ‹See Tfd›Greek: Δημήτριος ὁ Φαληρεύς; c. 350 – c. 280 BC[1]) was an Athenian orator originally from Phalerum, an ancient port of Athens. A student of Theophrastus, and perhaps of Aristotle, he was one of the first members of the Peripatetic school of philosophy. Demetrius had been a distinguished statesman who was appointed by Cassander, the King of Macedon, to govern Athens, where Demetrius ruled as sole ruler for ten years. During this time, he introduced important reforms of the legal system, while also maintaining pro-Cassander oligarchic rule.
Demetrius was exiled by his enemies in 307 BC. He first went to Thebes, and then, after 297 BC, went to the court of Alexandria. He wrote extensively on the subjects of history, rhetoric, and literary criticism. He is not to be confused with his grandson, also called Demetrius of Phaleron, who probably served as regent of Athens between 262 and 255, on behalf of the Macedonian King Antigonos Gonatas.[2]