Livy, CATO, Ovid, Pliny, and Seneca were all Roman writers. Livy was a historian who wrote a monumental history of Rome from its foundation to his own time. CATO was a statesman and orator who wrote on agriculture and other topics. Ovid was a poet who wrote works such as the Metamorphoses and Ars Amatoria. Pliny was a naturalist and author of the Natural History. Seneca was a philosopher and dramatist who wrote tragedies and moral essays.