DIONYSIUS HALICARNASSENSIS ("of Halicarnas sus"), Greek historian and teacher of rhetoric, flourished during the reign of Augustus. He went to Rome after the end of the civil wars and spent 22 years in studying Latin and preparing materials for his history. The date of his death is unknown. His great work, entitled 'Pwµaiaii apxaeoxo'yia (Roman Antiquities), embraced the history of Rome from the mythical period to the beginning of the first Punic War. It was divided into 20 books, of which the first nine remain entire, the tenth and eleventh are nearly com plete, and the remainder exist in fragments in the excerpts of Con stantine Porphyrogenitus and an epitome discovered by Angelo Mai in a Milan ms. The first three books of Appian and Plu tarch's Life of Camillus also embody much of Dionysius. His chief object was to reconcile the Greeks to the rule of Rome by dilating upon the good qualities of their conquerors. He has care fully consulted the best authorities, and his work and that of Livy are the only connected and detailed extant accounts of early Roman history.
The Arrangement of Words; On Imitation, on the best models in the different kinds of literature—a fragmentary work; Commentaries on the Attic Orators, dealing with Lysias, Isaeus, Isocrates and (by way of supplement), Deinarchus; On the admirable Style of Demosthenes; On Thucydides, a detailed but rather unfair crit icism of his treatment of subject matter and his style and two letters to Ammaeus dealing with Demosthenes and Thucydides, and the Letter to Cn. Pompeius, dealing with Plato.
edition by J. J. Reiske
; of theBibliography.-Complete edition by J. J. Reiske
; of the Archaeologia by A. Kiessling and V. Prou (1886) and C. Jacoby (1885-91) ; Opuscula by Usener and Radermacher (1899) ; Eng. trans lation by E. Spellman (1758). A full bibliography of the rhetorical works is given in W. Rhys Roberts's edition of the Three Literary Letters (190I) ; the same author published an edition of the De compositione verborum (1910, with trans.) ; see also M. Egger, Denys d'Halicarnasse (1902) , a very useful treatise. On the sources of Diony sius see O. Bocksch, "De fontibus Dion. Halicarnassensis" in Leipziger Studien, xvii. (1895) . Cf. also J. E. Sandys, Hist. of Class. Schol. i. (1906).