Questions
Other Counting Methods History of Mathematics Module 
Links to other History of Mathematics sites
[ Comments ] [ Module Leader ]
These pages are maintained by M.I.Woodcock.
20 count is found in widely separated regions but especially in Central America, N.E. Asia and Africa.
The decimal system has spread over most of the world because of the spread of Indo-European languages and because of its efficiency.
The 20 system once prevailed in a large area of Europe but it was replaced although traces remain in the Basque, Irish and Scottish languages.
Questions Other Counting Methods History of Mathematics Module Links to other History of Mathematics sites
[ Comments ] [ Module Leader ]
These pages are maintained by M.I.Woodcock.