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Gaius Plinius Secundus, known as Pliny the Elder, was a Roman author and naturalist. He was born in Como, Italy, in 23 AD and died in the eruption of Mount Vesuvius in 79 AD. Pliny the Elder is best known for his encyclopedic work Naturalis Historia, which covers a wide range of topics, including astronomy, geography, zoology, botany, and medicine.