Ephŏrus in Harpers Dictionary of Classical Antiquities

(Ἔφορος). Of Cymae in Aeolis, a celebrated Greek historian, a contemporary of Philip and Alexander, flourished about B.C. 340. He wrote a universal history (Ἱστορίαι), in thirty books, the first that was attempted in Greece. It covers a period of 750 years, from the return of the Heraclidae to B.C. 341. Of this history Diodorus Siculus made an extensive use. The work, however, has perished, with the exception of a few fragments, which may be found in Müller's Historicorum Graecorum Fragmenta (Paris, 1841-73).

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