DIGITAL

This website explores a technology central to ancient and medieval mathematics, culture, and daily life: the fingers.

For centuries, people used a powerful finger-numeration system to represent numbers up to one million using only their hands. This method facilitated complex arithmetic, supported secret communication, and served many other purposes.

From classical authors like Quintilian to medieval mathematicians such as Leonardo Fibonacci and Renaissance humanists like Pierio Valeriano, countless authors, including men and women, monks and merchants, as well as anonymous scribes and artists, bore witness to the circulation, longevity, and power of this digital system.

Long before Hindu-Arabic numerals became established in Europe, people across the Mediterranean were already using their hands to express place value and even a sign for zero.

This website is a guide to this amazing ancient practice.