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Agatharchus(ăg'əthär`kəs), fl. 5th cent. B.C., Greek painter of the Athenian school, b. Samos. He is credited by VitruviusVitruvius
(Marcus Vitruvius Pollio) , fl. late 1st cent. B.C. and early 1st cent. A.D., Roman writer, engineer, and architect for the Emperor Augustus. In his one extant work, De architectura (c.40 B.C., tr.
..... Click the link for more information. with important discoveries in application of shading and perspective and was the first painter of scenery for Athenian tragedies.