books.google.com - Written as a teaching aid for graduate and undergraduate math students, Florian Cajori's comprehensive 1896 survey of mathematics from Babylonian to modern times makes for a fascinating read. (Did you know that the decimal system is based on our having ten fingers and toes?) Beginning with the number...http://books.google.com/books/about/A_History_of_Elementary_Mathematics.html?id=jvrzaXrUS2cC&q=astronomer&utm_source=gb-gplus-shareA History of Elementary Mathematics

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## A History of Elementary MathematicsBy Florian Cajori |