Pliny the Elder was a Roman author, philosopher, and soldier born in 23 AD in Italy. He is known for his encyclopedic 37-volume work called Natural History, which covered many topics from zoology to medicine and was used as a source of education during the Middle Ages. Pliny received an education in Rome and later served in the military before devoting himself to writing. He died in 79 AD while attempting to rescue friends from the eruption of Mount Vesuvius near Pompeii.