23 CE – Gaius Plinius Secundus was born. – He mentions the grammarians and rhetoricians, Remmius Palaemon and Arellius Fuscus, and he may have been their student. In Rome he studied botany in the topiarius of the aged Antonius Castor, and saw the fine old lotus trees in the grounds that had once belonged to Crassus. 47 CE – He saw military service under Corbulo in Germania Inferior, taking part in the Roman conquest of the Chauci and the construction of the canal between the rivers Maas and Rhine. 50 CE – He probably accompanied his father’s friend Pomponius on an expedition against the Chatti and visited Germany for a third time as a comrade of the future emperor, Titus Flavius. 58 CE – He mentions the map of Armenia and the neighbourhood of the Caspian Sea, which was sent to Rome by the staff of Corbulo. 64 CE – He also saw the building of Nero’s "golden house" after the fire. 70 CE – 74 CE – His friend Vespasian he returned to the service of the state, serving as procurator in Gallia Narbonensis and Hispania Tarraconensis and also visiting the province of Gallia Belgica. 77 CE – He dedicated the work to the emperor Titus Flavius Vespasianus.
79 CE – On the 24th of August, he was stationed at Misenum, at the time of the great eruption of Mount Vesuvius, which overwhelmed Pompeii and Herculaneum.