Universal Decimal — Classification

The UDC divides all human knowledge into ten main "houses" (classes), numbered 0 to 9:

Using symbols like colons (:) or pluses (+) to show how different subjects—like Physics and Medicine —linked together to form new ideas like Biophysics . The System: A Mathematical Map of Mind universal decimal classification

Using numbers that any person, regardless of language, could understand. The UDC divides all human knowledge into ten

Their quest to catalog every piece of human thought led to the creation of the , a system built on the bones of the Dewey Decimal Classification but designed for far more than just books. The Vision: The Mundaneum The Vision: The Mundaneum In the late 19th

In the late 19th century, two Belgian visionaries, and Henri La Fontaine , looked at the world’s exploding volume of information and saw a looming "Pit of Despair"—a future where human knowledge would be lost simply because it couldn't be found.

To make this work, they needed a classification system that was: