Dionysus Of Halicarnassus, a Greek historian and rhetorician, born in Halicarnassus, Caria, about 70, died in Rome about 7 B. C., having removed there about 29. Of his life we know almost nothing, excepting that it was for the most part spent in literary labor. He wrote many rhetorical and critical essays, and shortly before his death published the greatest of his works, entitled or "Roman Antiquities." It was in 20 books, and contained the history of Rome from the earliest mythical times to the era of the Punic wars, where the history of Polybins begins. Only the first 11 books remain, which end with the year 441. Several fragments and extracts from the last nine books have been preserved in the collections made by command of the emperor Constantine Porphyrogenitus in the 10th century. The best editions of his works are those of Hudson (Oxford, 1704) and Reiske (Leipsic, 1774-'6). Such of his rhetorical compositions as have been preserved have been published separately by Gross and by "Westermann. There is an English translation of the "Roman Antiquities," by Edward Spel-man (4 vols. 4to, London, 1758).