02.02.23 Pliny the Younger. Pliny is known primarily for his eye witness account of the eruption of Mount Vesuvius in A.D. 79. His full name was Gaius Plinius Caecilius Secudus (A.D. 61 – 113), but became known to historians as Pliny the Younger. This was to set him apart from his uncle and adopted father, Pliny the Elder. The Younger was a lawyer, author, and magistrate to the court of Emperor Hadrian. He left numerous letters and documents that survived the centuries which present insight into the Roman culture of his time. His contribution to this study of first century Christianity is minimal, although he is believed to have been a fair and just magistrate concerning early believers.