
21/10/2025
Numeration systems are essential cognitive tools found in almost every human society, yet with striking variation across the globe. One key source of variation is the base used to compose larger numerals. Propositions on the origins and evolution of numeration systems abound but are scrutinized rarely and plagued by a surprising lack of consensus on what a base is. To solve these issues, this new theme issue brings together scholars from the cognitive, social, and behavioural sciences. Read: https://royalsocietypublishing.org/toc/rstb/2025/380/1937