Dio Chrysostom (Δίων Χρυσόστομος ), Dion of Prusa or Dio Cocceianus (ca. 40 – ca. 120) was a Greek orator, writer, philosopher and historian of the Roman Empire in the 1st century. Eighty of his Discourses (or Orations) are extant, as well as a few Letters and a funny mock essay In Praise of Hair, as well as a few other fragments. His surname Chrysostom comes from the Greek chrysostomos, which literally means "golden-mouthed". He should not be confused with the Roman historian Cassius Dio, nor with the 4th-century bishop John Chrysostom of Constantinople.