Pliny the Elder dedicated his massive 'Naturalis Historia' (Natural History) to Emperor Titus in Rome, Italy. Comprising 37 books, this work is the largest surviving encyclopedic text from the Roman Empire, compiling over 20,000 facts concerning geography, anthropology, botany, zoology, medicine, and mineralogy. Pliny systematically cited his sources, creating an early standard for research and documentation that preserved a vast wealth of ancient scientific lore.

Pliny's rich descriptions of mythical beasts, exotic lands, and natural phenomena became the primary source material for medieval bestiaries and Renaissance poets. Writers from Dante Alighieri to John Milton regularly relied on Pliny's vivid compendium to enrich their epic poetry with detailed mythological and geographical imagery.