The First Global Index of Printed Books

In the 1540s, a visionary scholar created the first universal bibliography to catalog every known printed work. It listed 10,000 titles, effectively attempting to organize the entire sum of human knowledge at the time.

Conrad Gessner compiled this massive project just decades after the printing press was invented. By documenting thousands of books in Latin, Greek, and Hebrew, he sought to prevent the loss of wisdom from antiquity. This Herculean effort established the foundation for modern library science. It remains a fascinating monument to the moment humanity first tried to categorize its collective intellect.