Celsus was a Latin encyclopaedist of the early Roman Empire. Only the eight medical books of his Artes survive, but agriculture, rhetoric, and military matters were also encompassed in his work. The overall enterprise was aimed at synthesising and ordering bodies of useful technical knowledge for a Roman elite audience, knowledge often with Greek origins. Celsus selected, adapted, and reorganised this learning, rendering it into Latin. The extant books follow the tradition division of the medical art into regimen, drugs, and surgery, and are prefaced by an important critical history of ancient medicine.
Aulus Cornelius Celsus was author, probably in the reign of the emperor Tiberius (14–37