Heracleides (or Heraclides) of Cyme (Greek: Ἡρακλείδης ὁ Κυμαίος; fl. 350 B.C.) is a little-attested Greek historian who wrote a multivolume Persica, or history of Persia, not extant. Fragments from the Persica are preserved primarily by Athenaeus and it describe the customs of the Persian court. Heracleides was himself a subject of Persia under the Achaemenid Empire.
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