Vesalius Publishes De Humani Corporis Fabrica — Modern Anatomy
Andreas Vesalius, a 28-year-old Flemish anatomist teaching at Padua, published De Humani Corporis Fabrica Libri Septem ('Seven Books on the Fabric of the Human Body') in 1543. It was the most detailed and accurate anatomical text ever written, illustrated with extraordinary woodcuts (probably by Jan Stephan van Calcar, a student of Titian). Vesalius performed systematic public dissections of human corpses — illegal in many places — and discovered over 200 errors in the work of Galen (129–216 AD), whose anatomy had been treated as authoritative for 1,300 years. Key corrections: Galen had described the human liver as five-lobed (true in dogs, not humans); the human jaw is a single bone (Galen said two); the human sternum has three parts (Galen said seven). By prioritising direct observation over inherited authority, Vesalius established the empirical method in medicine. The Fabrica was a landmark in scientific publishing: its combination of analytical text and precise illustration became the template for scientific communication. Published the same year as Copernicus's heliocentric treatise, 1543 is often called the year modern science was born.
- Year: 1543 CE
- Category: Scientific
