Around 30 AD, the Roman encyclopaedist Aulus Cornelius Celsus compiled De Medicina, a seminal work that remains one of the most significant surviving accounts of medical and surgical practices from the Roman era. Although it is widely believed that Celsus was not a practising physician himself, his writing served as a vital repository for the medical knowledge of his time. By synthesising information from earlier Greek and Roman sources, he ensured that complex clinical observations and technical procedures were preserved for future generations.

The text is structured as a comprehensive survey of the medical arts, covering a broad spectrum of health-related topics. It provides detailed insights into the understanding of disease, the application of various treatments, and the sophisticated operative techniques employed by ancient surgeons. His work is particularly noted for its clarity and its role in documenting the evolution of medical learning, offering a window into how health, anatomy, and pathology were conceptualised during the early Roman Empire.

The significance of De Medicina lies in its systematic approach to the field, which helped to standardise medical terminology and practice. Key aspects of the work include:

• Detailed descriptions of surgical procedures and instruments.
• Comprehensive accounts of various diseases and their symptoms.
• The integration of diet, pharmacy, and surgery as pillars of treatment.
• The preservation of classical medical theories for later scholars.
• An emphasis on the importance of clinical observation in patient care.

Because of its thoroughness and accessibility, De Medicina became a foundational text that influenced medical thought long after the fall of the Roman Empire. Its survival has allowed modern historians to reconstruct a more accurate picture of the capabilities and limitations of ancient medicine, highlighting the rigorous intellectual effort invested in the healing arts during the first century.