Arabic Numerals were introduced to Europe by Leonardo Bonacci. Bonacci, better known as Fibonacci, hailed from the 13th Century Republic of Pisa. If not for Fibonacci, we would all be using ...

This article contains references to products from our advertisers and/or partners, and we may receive compensation when you click on links to products and services These bonuses will be credited to ...

The Great American Read is made possible by the Anne Ray Foundation and public television viewers. Additional engagement funding for The Great American Read is made possible by CPB.