
The Incas’ Knotty History
Imagine a simple three-dimensional object that uses mathematics, history, accounting, and language to keep track of an amazing array of information. The Inca invented one over 500 years ago in Peru.
Imagine a simple three-dimensional object that uses mathematics, history, accounting, and language to keep track of an amazing array of information. The Inca invented one over 500 years ago in Peru.