His principal works are Historia Pelagiana sive Historiae de controversies quas Pelagius ejusque reliquiae moverunt (1618); Aristarchus, sive de arte grammatica (1635 and 1695; new ed.
DIONYSIUS THRAX (so called because his father was a Thracian), the author of the first Greek grammar, flourished about 100 He was a native of Alexandria, where he attended the lectures of Aristarchus, and afterwards taught rhetoric in Rhodes and Rome.
The most celebrated critics were Zenodotus; Aristophanes of Byzantium, to whom we owe the theory of Greek accents; Crates of Mallus; and Aristarchus of Samothrace, confessedly the coryphaeus of criticism.
A large collection of such curious information is contained in the Bibliotheca of Apollodorus, a pupil of Aristarchus who flourished in the and century B.C. Eratosthenes was the first to write on mathematical and physical geography; he also first attempted to draw up a chronological table of the Egyptian kings and of the historical events of Greece.
ARISTARCHUS, of Samos, Greek astronomer, flourished about 250 B.C. He is famous as having been the first to maintain that the earth moves round the sun.